experiment in simple past

Perfect tenses

Continuous (progressive) and emphatic tenses

Compound continuous (progressive) tenses

Conditional

Subjunctive

*Blue letters in conjugations are irregular forms. ( example ) *Red letters in conjugations are exceptions to the model. ( example )

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Here are the past tense forms of the verb experiment

👉 Forms of verb experiment in future and past simple and past participle. ❓ What is the past tense of experiment.

Experiment: Past, Present, and Participle Forms

What are the 2nd and 3rd forms of the verb experiment?

🎓 What are the past simple, future simple, present perfect, past perfect, and future perfect forms of the base form (infinitive) ' experiment '? 👉 It's quite simple -->

Learn the three forms of the English verb 'experiment'

• the first form (V1) is 'experiment' used in present simple and future simple tenses.
• the second form (V2) is 'experimented' used in past simple tense.
• the third form (V3) is 'experimented' used in present perfect and past perfect tenses.

What are the past tense and past participle of experiment?

What is the past tense of experiment.

The past tense of the verb "experiment" is "experimented", and the past participle is "experimented".

Verb Tenses

Past simple — experiment in past simple experimented (V2) . Future simple — experiment in future simple is experiment (will + V1) . Present Perfect — experiment in present perfect tense is experimented (have/has + V3) . Past Perfect — experiment in past perfect tense is experimented (had + V3) .

experiment regular or irregular verb?

👉 Is 'experiment' a regular or irregular verb? The verb 'experiment' is regular verb .

Examples of Verb experiment in Sentences

•   We experimented with gas and light weapon (Past Simple)
•   I haven't experimented with this for a long time. (Present Perfect)
•   And besides, he experimented with illegal hallucinogens. (Past Simple)
•   We will experiment with gas weapons. (Future Simple)
•   I read every spellbook I found in my possession, experimented with every potion in my crypt. (Past Simple)
•   She experimented with a pill of some kind that would cut quickly and had a very bad reaction. (Past Simple)
•   I can guess why he is experimenting on my son. (Present Continuous)
•   I experimented during the process and still not happy. (Past Simple)
•   It all started after we experimented with it. (Past Simple)
•   Scientists will start experimenting with electromagnetic pulses. (Future Simple)

Along with experiment, words are popular let in and outgrow .

Verbs by letter: r , d , u , c , m , p , b , w , h , a , e , g , s , q , j , l , t , f , o , n , k , i , v , y , z .

English verbs

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• 904 Regular verbs
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• 407 Phrasal verb

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Experiment Past Tense

experimented past tense of experiment is experimented.

Experiment verb forms

Conjugation of Experiment

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How to conjugate "to experiment" in English?

English "to experiment" conjugation.

• to experiment
• experimented

Full conjugation of "to experiment"

Translations for "to experiment", present continuous, simple past, past continuous, present perfect, present perfect continuous, past perfect, past perfect continuous, future continuous, future perfect, future perfect continuous, conditional, conditional present, conditional present progressive, conditional perfect, conditional perfect progressive, subjunctive, present subjunctive, past subjunctive, past perfect subjunctive, present participle, past participle.

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• To Experiment Conjugation

To Experiment

Continuous Perfect

Conditional

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Verb Table for experiment

• Simple tenses
• Continuous tenses

Conditional

Simple tenses  •  continuous tenses  •  conditional  •  imperative  •  impersonal.

Present Perfect

Past Perfect

Will -Future

Going to -Future

Future Perfect

Conditional Past

Past Participle

Browse the conjugations (verb tables)

• experimentalise
• experimentalize

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Verb "experiment"

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Conjugation

Simple tense.

Present Simple

• I experiment
• you experiment
• he, she experiments
• we experiment
• they experiment

Past Simple

• I experimented
• you experimented
• he, she experimented
• we experimented
• they experimented

Future Simple

• I will experiment
• you will experiment
• he, she will experiment
• we will experiment
• they will experiment

Continuous Tense

Present Simple Continuous

• I am experimenting
• you are experimenting
• he, she is experimenting
• we are experimenting
• they are experimenting

Past Simple Continuous

• I was experimenting
• you were experimenting
• he, she was experimenting
• we were experimenting
• they were experimenting

Future Simple Continuous

• I will be experimenting
• you will be experimenting
• he, she will be experimenting
• we will be experimenting
• they will be experimenting

Perfect Tense

Present Perfect

• I have experimented
• you have experimented
• he, she has experimented
• we have experimented
• they have experimented

Past Perfect

• I had experimented
• you had experimented
• he, she had experimented
• we had experimented
• they had experimented

Future Perfect

• I will have experimented
• you will have experimented
• he, she will have experimented
• we will have experimented
• they will have experimented

Perfect Continuous Tense

Present Perfect Continuous

• I have been experimenting
• you have been experimenting
• he, she has been experimenting
• we have been experimenting
• they have been experimenting

Past Perfect Continuous

• I had been experimenting
• you had been experimenting
• he, she had been experimenting
• we had been experimenting
• they had been experimenting

Future Perfect Continuous

• I will have been experimenting
• you will have been experimenting
• he, she will have been experimenting
• we will have been experimenting
• they will have been experimenting

Conditional

• I would experiment
• you would experiment
• he, she would experiment
• we would experiment
• they would experiment
• I would have experimented
• you would have experimented
• he, she would have experimented
• we would have experimented
• they would have experimented

Present Continuous

• I would be experimenting
• you would be experimenting
• he, she would be experimenting
• we would be experimenting
• they would be experimenting

Perfect Continuous

• I would have been experimenting
• you would have been experimenting
• he, she would have been experimenting
• we would have been experimenting
• they would have been experimenting
• we Let's experiment

Other verbs

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Conjugation of verb (past tense) experiment

Past simple, experimented, past participle.

• ⭐Conjugation
• Podmínkové věty
• Frázová slovesa
• ⭐Conditional
• ⭐Subjunktiv
• ⭐Participle

Conjugation of the regular verb [experiment]

Conjugation is the creation of derived forms of a verb from its principal parts by inflection (alteration of form according to rules of grammar). For instance, the verb "break" can be conjugated to form the words break, breaks, broke, broken and breaking.

The term conjugation is applied only to the inflection of verbs, and not of other parts of speech (inflection of nouns and adjectives is known as declension). Also it is often restricted to denoting the formation of finite forms of a verb – these may be referred to as conjugated forms, as opposed to non-finite forms, such as the infinitive or gerund, which tend not to be marked for most of the grammatical categories.

Conjugation is also the traditional name for a group of verbs that share a similar conjugation pattern in a particular language (a verb class). A verb that does not follow all of the standard conjugation patterns of the language is said to be an irregular verb .

Present Continuous

Past continuous, present perfect, present perfect continuous, past perfect, past perfect continuous, future continuous, future perfect, future perfect continuous, conditional of the regular verb [experiment].

Causality (also referred to as causation or cause and effect ) is influence by which one event, process, state or object (a cause) contributes to the production of another event, process, state or object (an effect) where the cause is partly responsible for the effect, and the effect is partly dependent on the cause. In general, a process has many causes, which are also said to be causal factors for it, and all lie in its past. An effect can in turn be a cause of, or causal factor for, many other effects, which all lie in its future.

The conditional mood (abbreviated cond) is a grammatical mood used in conditional sentences to express a proposition whose validity is dependent on some condition, possibly counterfactual.

English does not have an inflective (morphological) conditional mood, except in as much as the modal verbs could, might, should and would may in some contexts be regarded as conditional forms of can, may, shall and will respectively. What is called the English conditional mood (or just the conditional) is formed periphrastically using the modal verb would in combination with the bare infinitive of the following verb. (Occasionally should is used in place of would with a first person subject – see shall and will. Also the aforementioned modal verbs could, might and should may replace would in order to express appropriate modality in addition to conditionality.)

Conditional present -->

Conditional present progressive -->, conditional perfect -->, conditional perfect progressive -->, subjunktiv of the regular verb [experiment].

The subjunctive is a grammatical mood, a feature of the utterance that indicates the speaker's attitude toward it. Subjunctive forms of verbs are typically used to express various states of unreality such as: wish, emotion, possibility, judgement, opinion, obligation, or action that has not yet occurred; the precise situations in which they are used vary from language to language. The subjunctive is one of the irrealis moods, which refer to what is not necessarily real. It is often contrasted with the indicative, a realis mood which is used principally to indicate that something is a statement of fact.

Subjunctives occur most often, although not exclusively, in subordinate clauses, particularly that-clauses. Examples of the subjunctive in English are found in the sentences "I suggest that you be careful" and "It is important that she stay by your side."

The subjunctive mood in English is a clause type used in some contexts which describe non-actual possibilities, e.g. "It's crucial that you be here" and "It's crucial that he arrive early." In English, the subjunctive is syntactic rather than inflectional, since there is no specifically subjunctive verb form. Rather, subjunctive clauses recruit the bare form of the verb which is also used in a variety of other constructions.

Present subjunctive -->

Past subjunctive -->, past perfect subjunctive -->, imperativ of the regular verb [experiment].

The imperative mood is a grammatical mood that forms a command or request.

An example of a verb used in the imperative mood is the English phrase "Go." Such imperatives imply a second-person subject (you), but some other languages also have first- and third-person imperatives, with the meaning of "let's (do something)" or "let them (do something)" (the forms may alternatively be called cohortative and jussive).

Imperativ -->

Participle of the regular verb [experiment].

​The past participle is one of the most important parts of English grammar. It’s used to express perfect tenses and to form the passive voice. It’s also a useful tool for writing sentences that describe actions that started in the past and are still happening today. The past participles of irregular verbs don’t follow a specific pattern and can have numerous endings.

Present participle -->

Past participle -->, recent articles.

• Past perfect and past perfect progressive – understanding the differences
• Past perfect progressive tense
• Present perfect and past perfect - understanding the differences
• Past simple and past perfect tenses - understanding the differences
• Past perfect tense affirmative sentences

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regular verbs & Irregular verbs

Past tense of experiment

Simple past.

• Experimented

Past participle

All forms of the verb experiment.

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• 1.1 Etymology
• 1.2 Pronunciation
• 1.3.1 Derived terms
• 1.3.2 Translations
• 1.4.1 Derived terms
• 1.4.2 Translations
• 1.4.3 References
• 2.1 Etymology
• 2.2 Pronunciation
• 2.3.1 Derived terms
• 2.4 References
• 2.5 Further reading
• 3.1 Etymology
• 3.2 Pronunciation
• 3.3.1 Declension
• 3.3.2 Related terms
• 3.4 Further reading
• 4.1 Etymology
• 4.2 Pronunciation
• 4.3.1 Related terms
• 4.3.2 Descendants
• 5.1 Etymology
• 5.2.1 Related terms
• 6.1 Etymology
• 6.2.1 Declension
• 7.1 Etymology
• 7.2 Pronunciation
• 7.3.1 Declension
• 7.3.2 Related terms
• 7.4 References

From Middle English experiment , from Old French esperiment ( French expérience ), from Latin experimentum ( “ experience, attempt, experiment ” ) , from experior ( “ to experience, to attempt ” ) , itself from ex + *perior , in turn from Proto-Indo-European *per- .

Pronunciation

• ( UK ) IPA ( key ) : /ɪkˈspɛɹ.ɪ.mənt/ , /ɛkˈspɛɹ.ɪ.mənt/

• Hyphenation: ex‧per‧i‧ment

experiment ( plural experiments )

• 1837 , L[etitia] E[lizabeth] L[andon ], “The Laboratory”, in Ethel Churchill: Or, The Two Brides.   [ … ] , volume II, London: Henry Colburn ,   [ … ] , →OCLC , page 327 : From her childhood she had been accustomed to watch, and often to aid, in her uncle's chemical experiments ; she was, therefore, not at a loss, as a complete novice in the science would have been.
• 1590 , Edmund Spenser , “Book II, Canto VI”, in The Faerie Queene.   [ … ] , London: [ … ] [ John Wolfe ] for William Ponsonbie , →OCLC : Pilot [...] Vpon his card and compas firmes his eye, The maisters of his long experiment , And to them does the steddy helme apply [...].

Derived terms

• blue bottle experiment
• control experiment
• double-slit experiment
• experimental
• factorial experiment
• forbidden experiment
• ganzfeld experiment
• gedanken experiment
• Hughes-Drever experiment
• Michelson-Morley experiment
• Milgram experiment
• noble experiment
• science experiment
• sexperiment
• Stern-Gerlach experiment
• thought experiment
• Valsalvian experiment
• Wizard of Oz experiment

Translations

experiment ( third-person singular simple present experiments , present participle experimenting , simple past and past participle experimented )

• 1951 October, “Models Assist Rolling Stock Design”, in Railway Magazine , page 647 : As well as demonstrating operating facilities, full-size car body models are used for experimenting with new types of interior finish, systems of lighting, positioning of route diagrams and advertisements, and the best form of windscreens at doorways, and the height and location of handgrips and handrails.
• 1978 August 19, David Brill, “California Here I Come!”, in Gay Community News , volume 6, number 5, page 10 : Bob is a shameless tourist: Coit Tower, Fisherman's Wharf, Twin Peaks, ad infinitum. I think walking the streets with a map in hand looks dumb; experimenting is much more fun.
• 1662 Thomas Salusbury, Galileo's Dialogue Concerning the Two Chief World Systems (Dialogue 2): The Earth, the which may have carried us about perpetually ... without our being ever able to experiment its rest.
• 1481 , The Mirrour of the World , William Caxton, 1.5.22 : Til they had experimented whiche was trewe, and who knewe most.
• experimenter

• John A. Simpson and Edmund S. C. Weiner , editors ( 1989 ), “experiment”, in The Oxford English Dictionary , 2nd edition, Oxford: Clarendon Press , →ISBN .

Borrowed from Latin experīmentum . First attested in 1460. [ 1 ]

• IPA ( key ) : ( Central ) [əks.pə.ɾiˈmen]
• IPA ( key ) : ( Balearic ) [əks.pə.ɾiˈment]
• IPA ( key ) : ( Valencia ) [eks.pe.ɾiˈment]

experiment   m ( plural experiments )

• experimentar
• ^ “ experiment ”, in Gran Diccionari de la Llengua Catalana , Grup Enciclopèdia Catalana , 2024

Further reading

• “experiment” in Diccionari de la llengua catalana, segona edició , Institut d’Estudis Catalans .
• “experiment” in Diccionari normatiu valencià , Acadèmia Valenciana de la Llengua .
• “experiment” in Diccionari català-valencià-balear , Antoni Maria Alcover and Francesc de Borja Moll, 1962.

Borrowed from Latin experīmentum .

• IPA ( key ) : [ˈɛkspɛrɪmɛnt]

experiment   m   inan

• experiment Synonym: pokus provést experiment ― to perform an experiment

Related terms

• experimentální
• experimentovat
• “ experiment ”, in Příruční slovník jazyka českého (in Czech), 1935-1957
• “ experiment ”, in Slovník spisovného jazyka českého (in Czech), 1960–1971, 1989
• “ experiment ”, in Internetová jazyková příručka (in Czech)

From Middle Dutch experiment , from Old French experiment , from Latin experimentum .

• IPA ( key ) : /ˌɛks.peː.riˈmɛnt/

• Hyphenation: ex‧pe‧ri‧ment
• Rhymes: -ɛnt

experiment   n ( plural experimenten , diminutive experimentje   n )

• experiment Synonyms: proef , test
• experimentatie
• experimenteel
• experimenteren

Descendants

From Latin experīmentum .

experiment   m ( plural experiments )

Borrowed from Latin experimentum .

experiment   n ( plural experimente )

Borrowed from Latin experīmentum , attested from 1682. [ 1 ]

• IPA ( key ) : /ɛksp(ɛ)rɪˈmɛnt/

experiment   n

• experimentell
• ^ experiment in  Svensk ordbok .
• experiment in Svenska Akademiens ordlista ( SAOL )
• experiment in Svenska Akademiens ordbok ( SAOB )

• English terms derived from Proto-Indo-European
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Simple Past Tense (Did) – With Explanations Pictures and Exercises

Simple past tense (past simple tense) is a verb tense that describes completed actions or past habits before now. It is also used to talk about a series of events in the past. “Did” is the helping verb of simple past tense. For affirmative (positive) sentences we use past simple form of a verb.

⬤ Formation of simple past tense

For affirmative sentences we use the formation of “verb + ed” . For negative sentences and questions we use the auxiliary “did” or “did not”. See the chart below to learn the structure of simple past tense.

Examples with Pictures Dialogue exercise Sentence scramble game Translation exercise

⬤ Which auxiliary (helping verb) to use for simple past tense?

The auxiliary verb in simple past tense is “ did “. However we use “ was-were ” to talk about a state in the past. Examples:

• I walked in the park.
• I didn’t walk in the park.
• Did you walk in the park?
• I was in the park.
• I wasn’t in the park.
• Were you in the park?

⬤ Positive (Affirmative) sentences

For the formation of positive sentences in simple past tense we add “ -ed “, “ -ied ” or just “ -d ” to the verb. We do not use “ did ” for the positive sentences.

• I asked a question.
• She studied maths.
• She cleaned her room.
• Jack repaired the car last week.
• A traffic accident happened yesterday.

⬤ Negative sentences

For the formation of negative sentences in simple past tense we use “ not ” together with “ did “. The short form is “ didn’t ”

• He did not want tea.
• We didn’t wait for the bus.
• I didn’t use your pen.
• Susan didn’t lie.

⬤ Interrogative sentences

For the formation of question sentences (interrogative) in simple past tense we put “ did ” before the subject.

• Did you enjoy your holiday.
• Did she write an email.
• Where did Yuto go?
• What did Ali want?

⬤ Sentence forms in simple past tense

⬤ What are the regular verbs?

Regular verbs are the verbs that gets “ -ed “, “ -ied ” or “ -d ” for the the past simple forms.

⬤ What are the irregular verbs?

Irregular verbs are the verbs which don’t get “ -ed “, “ -ied ” or “ -d ” to form past simple form or past participle form. There are a number of irregular verbs which needs to be memorized. Because the formation has no standard rule. Some verbs have the same form as bare form, past simple form or past participle form. For example “cut, put, let, hit”.

• (+) I  visit ed  my uncle. 
• (-) I  didn’t visit  my uncle yesterday. 
• (?) Did you visit your uncle yesterday? 
• (+) They found the cat.
• (-) They didn’t find the cat.
• (?) Did they find the cat?

SIMILAR PAGES: ❯❯ Learn verb to be here ❯❯ Learn simple present tense here ❯❯ Learn present continuous tense here ❯❯ Learn future simple tense (will) here ❯❯ Learn be going to future tense here ❯❯ Learn past continuous tense here ❯❯ Learn present perfect tense here

⬤ Explanations and usages of Simple Past Tense

Let’s go on with the explanations, usages and time adverbs of simple past tense:

⬤ 1- Finished actions in the past

Simple Past Tense is used to describe a finished action in a specific time in the past. Examples: I  watched  a film yesterday.  I  did n’t watch a film yesterday.  Last year, I  traveled  to Italy.  Last year, I  did n’t travel to Italy.  She  washed  her hands.  She  did n’t wash her hands.  I bought a hat yesterday. Did you like your cake? Where did you go? What did Ethan say? How did she get 100 points in the exam?

⬤ 2- A series of finished actions.

Simple Past Tense is also used to describe past actions that happen one after the other. The series of actions are all expressed in simple past tense. Examples: I  went out,  walked  to the park, and  watched  the sky silently.

He  arrived  from the airport at 11:00,  looked  for someone to ask the way, and called  a taxi.

⬤ 3- Past habits

We can also use simple past tense to talk about habits in the past. Examples: I  always played  basketball when I was a child. He  often played  the guitar. They never  went  to school, they always  skipped . She  worked  at the hospital after school.

⬤ Using “was”, “were” to talk about past states.

If you want to talk about a past state or condition we use “was, were”. The negative form is “was not, were not” or “wasn’t weren’t”. To make questions we use “was/were” before the subject.

⬤ I lived in London. ⬤ I was in London.

Examples (did) Sally worked at the hospital. Sally didn’t work at the hospital. Did Sally work at the hospital? Where did Sally work?

Examples (was-were) Sally was at the hospital. Sally wasn’t at the hospital. Was Sally at the hospital? Where was Sally?

⬤ What are the time expressions in simple past tense?

⬤ yesterday   I went to the cinema yesterday.  ⬤ last  week, last  year, last  Sunday, last month etc. He bought a car last week.  ⬤ two years ago , four days ago , three minutes  ago etc. I saw her five minutes ago. ⬤ in 1995, in 2003 etc. I had an accident in 2014.

⬤ Time adverbs exercise

You can see the simple past tense time adverbs below. Click on the cards and tell the meaning of them in your native language..

⬤ Images and example sentences

You can learn simple past tense with images and example sentences below.

⬤ A conversation example

Here is a dialogue to learn simple past tense. You can make similar conversations.

Did you win the match yesterday?

Yes, we did.

How was the game?

I don’t know.

What do you mean?

Didn’t you play?

Actually I didn’t.

I had a traffic accident

so I spent the night at a hospital.

We won the match.

My teammates dedicated the goals to me.

Well. Your team needs you. Get well soon.

⬤ Translate these sentences

You will see random examples of simple past tense below. Try to translate them into your own language.

⬤ Sentence scramble game

You will see scrambled words of simple past tense sentences. Click on them in order to make a sentence.

⬤ Example sentences about simple past tense

You can see many sentences below to learn simple past tense.

➔ 10 examples of about simple past tense

• I listened to the new pop album yesterday. It’s great.
• She liked the film but she didn’t like the music.
• There was a problem with the plug.
• I was happy to see her with a smile in her face.
• Her parents travelled by train from Istanbul to Moscow.
• I phoned you four times last night but you were out.
• There were many workers waiting outside.
• We walked along the beach yesterday. It was lovely.
• I had a problem. So I asked to my mother about it.
• Last week I was in Paris. I stayed in a hotel.

⬤ Questions and with answers

Read the questions and the answers below to learn how to use about simple past tense.

➔ 10 questions and answers about simple past tense

• Did you like the film? Yes, I liked it very much.
• Did they give her a present after the ceremony? Yes, they gave her a new camera.
• When did you start playing the guitar? I started playing the guitar when I was nine.
• Was there a guard at the door? No. They let us in.
• When did you leave school? I left school when I was sixteen.
• Who invented the radio? Guglielmo Marconi invented it.
• When did you give your first concert? We gave our first concert in a wedding in Liverpool.
• How many sandwiches did he eat? He ate 3 sandwiches.
• Were you with Sally when she had an accident? Yes, I was.
• What did she do with the book? She sat on a bench and started reading.

External resources: You can go to British Council page and study simple past tense , or watch a video from the popular movies about past simple tense .

related pages

Fill in the blanks quiz for simple past tense, sentence scramble game for simple past tense, accessories vocabulary 👓 exercises pictures audio, body parts in english 👨 with games and listed images, classroom objects vocabulary in english 📕 with games, clothes vocabulary in english 👕 learn with images and flashcards, colour names in english 🎈 with tests and images, computer parts (hardware) vocabulary: pictures audio, verb to be (am, is, are) – with examples and online exercises, modal “can” – with explanations exercises and activities, present continuous tense – with usage examples and pictures, simple present tense (do-does) – with usage, pictures and example sentences.

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Definition of experiment verb from the Oxford Advanced American Dictionary

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Find the answers with Practical English Usage online, your indispensable guide to problems in English.

• 3 [ intransitive ] experiment with something to try something such as drugs or sex to find out what it is like He experimented with drugs when he was in college.

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Past Simple Tense (Simple Past): Definition, Rules and Useful Examples

The Past Simple Tense is crucial when talking about actions that happened in the past. To use this tense confidently, you need to understand its rules and structure. We’ll cover what the Past Simple Tense is, how to structure sentences, and provide examples that illustrate its use.

Defining Past Simple Tense

The past simple tense describes actions that happened and were completed in the past. It shows that something is finished and no longer happening.

Forming the past simple tense is generally simple. For regular verbs, add  -ed  to the base form. For example:

• play  →  played
• walk  →  walked

Irregular verbs do not follow this rule. Their forms must be memorized. Some examples include:

• go  →  went
• eat  →  ate

The past simple tense is often used with specific time markers. Common time indicators include:

In sentences, it usually follows this structure:

Subject + past verb + object .

For example:

• She  visited  her friend.
• They  bought  a car.

Questions in the past simple tense are formed using the auxiliary verb  did . For instance:

• Did he  see  the movie?
• Did they  finish  the project?

Negatives are formed by adding  not  after  did . For example:

• He  did not  go.
• They  did not  play.

Understanding the past simple tense is essential for clear communication about past events.

Structure of Past Simple Tense

The past simple tense is used to talk about actions that happened and were completed in the past. Its structure varies depending on whether the verb is regular or irregular. Additionally, negative and interrogative forms have specific rules that are important to understand.

Regular Verbs Formation

Regular verbs in the past simple tense are formed by adding  -ed  to the base form of the verb.

• play  becomes  played
• walk  becomes  walked

If the verb ends in  -e , only  -d  is added. Examples include:

• like  becomes  liked
• love  becomes  loved

For verbs ending in a consonant plus  -y , the  -y  changes to  -i  before adding  -ed :

• cry  becomes  cried
• hurry  becomes  hurried

For one-syllable verbs with a single vowel and ending in a consonant, the final consonant is often doubled before adding  -ed :

• stop  becomes  stopped
• plan  becomes  planned

Irregular Verbs Formation

Irregular verbs do not follow a specific pattern in the past simple tense. Each verb has its own past form that must be learned.

Common examples include:

• go  becomes  went
• have  becomes  had
• see  becomes  saw

To learn irregular verbs, it is helpful to create a list or flashcards. Many resources and tables are available that show the base form alongside the past simple form. Understanding these changes is essential for correct verb usage.

Negative Sentences Structure

To form negative sentences in the past simple tense, “did not” is used with the base form of the verb.

• She  did not play  soccer.
• They  did not go  to the party.

In this structure, “did” helps indicate the past, while “not” denies the action. Contractions can also be used for  did not . For example, “didn’t” can make sentences flow more naturally.

Interrogative Sentences Structure

Interrogative sentences in the past simple tense begin with “did.” The sentence structure places “did” at the start, followed by the subject and then the base form of the verb.

• Did he play  soccer?
• Did they go  to the park?

The word “did” indicates that the action took place in the past. The base form of the verb is used instead of the past form. This structure is simple and straightforward, making it easy to ask questions about past actions.

Usage Rules for Past Simple Tense

The past simple tense is used to talk about actions that have finished in the past. There are specific rules to help understand when to use this tense for different situations.

Completed Actions

The past simple tense is often used to describe actions that are completed. These actions have a clear beginning and end. For example:

• She visited her grandmother last weekend.
• They finished the project yesterday.

In these sentences, the actions are clearly over. Time markers like “yesterday,” “last week,” or “in 2010” can help show when the action happened.

When describing completed actions, the regular verbs typically add “-ed” to the base form. Irregular verbs have unique past forms that must be memorized.

Sequences of Past Events

This tense is also used to describe a series of actions that happened one after another. For instance:

• He woke up, ate breakfast, and went to school.
• They played soccer, then watched a movie.

Each action in the sequence is complete and indicates a specific order. Using time words like “then” or “after” can clarify the sequence.

These words help the reader understand how events connect in time. Each part of the sequence shows what happened first, next, and last.

Past Habits and States

The past simple tense can express habits or regular actions that occurred in the past. For example:

• He walked to school every day.
• She read books as a child.

These actions were common at that time but do not happen anymore.

The past simple tense can also show states or facts about the past. For instance:

• They lived in London for a year.
• She was happy during her childhood.

This use highlights how things were previously, but it does not imply they are still the same.

Common Time Expressions

Time expressions are essential for using the past simple tense correctly. They help indicate when an action took place. These expressions can be adverbs, adverbial phrases, or prepositions of time.

Adverbs and Adverbial Phrases

Adverbs and adverbial phrases provide specific details about when actions happened in the past. Some common adverbs include:

• A long time ago

Examples using these adverbs:

• She visited her grandmother  yesterday .
• They went on vacation  last week .

Adverbial phrases can also clarify time:

• At that moment

For instance:

• He graduated  in 2010 .
• I saw her  just now .

These expressions make it clear when actions occurred, which is crucial for understanding the timeline in past events.

Prepositions of Time

Prepositions of time link actions to specific time references. Common prepositions include  at ,  in , and  on .

• Example: They moved to a new house  in June .
• Example: She was born  on Monday .
• Example: The meeting started  at 3 PM .

Using these prepositions correctly helps describe when something happened. This precision supports clear communication in the past simple tense.

Past Simple Tense Exercises

Practicing the past simple tense can help improve understanding. Here are some exercises to try.

Exercise 1: Fill in the Blanks

Complete each sentence with the correct past simple verb form.

• She ____ (visit) her grandparents last weekend.
• They ____ (play) soccer yesterday.
• He ____ (build) a treehouse when he was a child.

Exercise 2: Correct the Sentences

Find and correct the mistakes in each sentence.

• She go to the park yesterday.
• They was happy about the trip.
• He eat lunch at noon.

Exercise 3: Write Sentences

Write a sentence for each prompt using the past simple tense.

• What did you do last summer?
• Describe a memorable birthday.
• Share a fun activity from the previous week.

Exercise 4: Quiz

Choose the correct past simple form.

• I (see/saw) a movie last night.
• They (is/was) excited about the game.
• She (went/gone) to the store last Friday.

These exercises focus on common verbs and situations. Regular practice will build confidence in using the past simple tense.

All Tenses in English

Learn all (12) tenses in English with useful grammar rules, examples and ESL worksheets.

Verb Tenses Chart

• Present Simple Tense
• Present Continuous Tense
• Present Perfect Tense
• Present Perfect Continuous Tense
• Past Simple Tense
• Past Continuous Tense
• Past Perfect Tense
• Past Perfect Continuous Tense
• Simple Future Tense
• Future Continuous Tense
• Future Perfect Tense
• Future Perfect Continuous
• Latest Posts

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• Sentence Exercises – Sentence Worksheet - December 23, 2023

• Past Simple Tense in English

Past Simple Tense in English – Regular and Irregular verbs in the past tense

In the present simple tense , we say:

• They live …

BUT, for HE, SHE and IT, we add an S to the end of their verb in the present simple. So we say:

• She lives …

However, for the past simple tense it is much easier. There is only one form of each verb in the past simple tense.* * The exception is TO BE which has two forms: was and were . We will see more about this later.

The past tense of LIVE is LIVED . LIVED is used for all subjects including HE, SHE and IT.

• You lived …
• They lived …
• She lived …

You can see that the past tense verb is the same for all subjects. There is only one form for each verb.

Look at these examples in the present simple tense:

• I live in a small apartment.
• He lives in a big house.

How can we change these sentences into the past tense? They become…

• I lived in a small apartment.
• He lived in a big house.

Notice how in the present tense, the verb changes: I live – he lives . But in the past tense, the verb is the same: I lived – he lived .

How can you make a past tense verb?

To make a past tense verb, we normally just add -ED to the end of a regular verb.

• play becomes played
• rain becomes rained
• cook becomes cooked
• watch becomes watched
• need becomes needed
• want becomes wanted

If the regular verb already ends in -E , we just add a -D to the end. For example: LIVE already ends in an E so we just add -D to the end:

• live becomes lived
• smile becomes smiled
• dance becomes danced

See our lesson about the spelling of words ending in ED for more examples and exceptions.

Let’s look at some more example sentences using regular verbs in the past simple tense:

• I played my guitar yesterday.
• It rained last night.
• He fixed his bike last weekend.
• Angela watched TV all night.
• Paul wanted to go to the museum.

Now listen to the pronunciation of ED at the end of each verb (in the video).

Play ed , rain ed , cook ed , watch ed , need ed , want ed .

Notice how the final ED is pronounced in three different ways.

Listen to the video again:

• play ed … ends in a /d/ sound
• rain ed … ends in a /d/ sound
• cook ed … ends in a /t/ sound
• watch ed … ends in a /t/ sound
• need ed … ends in a /id/ sound
• want ed … ends in a /id/ sound

I recommend watching our complete English lesson about the pronunciation of ED at the end of words.

Negative Sentences – Past Simple Tense

Look at these sentences:

• They live in Spain. (Present Tense – Affirmative sentence)
• They lived in Spain. (Past Tense – Affirmative sentence)

The only difference is that the verb in the past tense ends in ED.

What is the negative form of the sentence in the present simple tense?

• They live in Spain … becomes …
• They don’t live in Spain.

Don’t and doesn’t are used in the present simple tense to make a negative sentence.

But how do we make a negative sentence in the past simple tense?

We just use didn’t .

• They lived in Spain … becomes …
• They didn’t live in Spain.

We do not say they didn’t lived in Spain. No!

Look at the summary chart. CHART

Didn’t is used to make negative sentences in the past simple tense .

Remember, in the present simple tense , don’t and doesn’t are used. In the past simple tense , we only have one auxiliary: didn’t

I didn’t, you didn’t, we didn’t, they didn’t, he didn’t, she didn’t, it didn’t.

Didn’t is used for all subjects… it is so easy!

But comes after didn’t ? The verb after didn’t is always the base form of the infinitive. didn’t live … didn’t play … didn’t watch The auxiliary didn’t tells us it is a negative sentence in the past simple tense.

Let’s look at the two negative sentences again:

The only difference between these negative sentences in the present tense vs. the past tense are the auxiliaries don’t or doesn’t and didn’t .

Change these negative sentences from the present tense to the past tense:

• I don’t play the piano. …becomes…
• I didn’t play the piano.
• She doesn’t live in Italy. …becomes…
• She didn’t live in Italy.
• We don’t need a dictionary. …becomes…
• We didn’t need a dictionary.
• Jack doesn’t want to go. …becomes…
• Jack didn’t want to go.

Some more examples of negative sentences in the past simple tense:

• I didn’t want to go home.
• You didn’t need my help.
• He didn’t like the soup.
• She didn’t open the door.
• We didn’t say anything.
• They didn’t drive to work.

Questions – Past Simple Tense

Look at these sentences again:

How do we make a question in the present simple tense?

• Do they live in Spain?

We just add Do to the beginning. Do and does are used in the present simple tense to make a question.

But how do we make a question in the past simple tense? We add did to the beginning.

• Did they live in Spain?

Notice how we the verb LIVE is used because it is the base form of the infinitive just like with negative sentences. We do not say: Did they lived in Spain? No!

In English, we use DID to make questions in the past simple tense.* * Exceptions: Questions with To Be or Modal Verbs (can, might, must, etc.)

So, the questions are:

• Do they live in Spain? (Present simple tense)
• Did they live in Spain? (Past simple tense)

The only difference between these questions in the present tense vs. the past tense are the auxiliaries do or does vs. did .

Change these questions from the present tense to the past tense:

• Do you play football? …becomes…
• Did you play football?
• Does he want to go? …becomes…
• Did he want to go?
• Do I need a ticket? …becomes…
• Did I need a ticket?
• Does she live in Japan? …becomes…
• Did she live in Japan?

Some more examples of questions in the past simple tense:

• Did I win the prize?
• Did you need my help?
• Did he like the soup?
• Did she open the window?
• Did we arrive on time?
• Did Steve walk to school?

Short Answers in the Past Simple Tense

With questions beginning with DID , you can often give a short answer.

Look at these questions. What are some possible short answers?

• Did you need my help? Yes, I did … or … No, I didn’t.
• Did she open the window? Yes, she did … or … No, she didn’t.
• NOT IN VIDEO: Did we win the game? Yes, we did … or … No, we didn’t.
• Did Steve walk to work? Yes, he did … or … No, he didn’t.

Question Words in the Past Simple Tense

With questions, you can also use one of the “ question words ” such as when, where, why, what, who, which etc. before DID . Look at these example questions:

• When did you arrive?
• Where did they go?
• Why did she leave early?
• What did he say?
• Who did you see?
• Which did you choose?
• How did you learn English?

Past Simple Tense – Irregular Verbs – Affirmative Sentences

For now, we have only seen regular verbs in the past tense. BUT, don’t worry, irregular verbs in the past tense are also easy.

Let’s look at the verb TO GO. In the present tense it is GO or GOES. The past tense of GO is WENT . WENT is used for all subjects…

I went, you went, he went, she went, it went, we went, and they went.

They all use WENT . For example:

• I went to the beach last weekend.
• She went to the dentist last week.
• They went to the library yesterday.
• You went to a concert last night.

For the past tense of GO, you just need to learn one word… WENT.

The best thing is that you only need to know this irregular form for affirmative sentences

Past Simple Tense – Irregular Verbs – Negative Sentences

For negative sentences in the past tense, we follow the same rules as regular verbs.

We use didn’t with the verb in its base form. For example:

• You went to the concert. (This is an affirmative sentence)

What do we make this a negative sentence in the past simple tense? We use DIDN’T.

• You didn’t go to the concert.

Notice how we use GO because we have the base form of the infinitive: instead of TO GO, just GO.

We don’t say: You didn’t went to the concert. X NO! Didn’t tells us it is in the past tense.

• You didn’t go to the concert. (This is correct)

Here is another affirmative sentence in the past tense.

• He went to the park.

How can we make this a negative sentence?

• He didn’t go to the park.

Again, the auxiliary didn’t tells us it is negative sentence in the past simple tense.

Past Simple Tense – Irregular Verbs – Questions

Now look at the affirmative sentence again:

• You went to the concert.

How can we make this a question? Using the same rules for regular and irregular past tense verbs.

We use DID at the beginning while the verb is in the base form of the infinitive. The question is:

• Did you go to the concert?

The auxiliary DID at the beginning tells us it is a question in the past simple tense.

Notice how we use GO because we have the base form of the infinitive: instead of TO GO, just GO. We don’t say: Did you went to the concert? X NO! Did tells us it is a question in the past tense.

Look at this affirmative sentence:

How can we change it into a question? We say:

• Did he go to the park?

Again, did tells us it is a question in the past tense.

Past Simple Tense – Irregular Verbs – Summary

So basically, past tense irregular verbs are only irregular in affirmative sentences. AND there is only one form for each verb. For example:

You can see that GO is only irregular in affirmative past tense sentences when it becomes WENT.

In negative sentences and questions, we use GO.

Of course, there is an exception… TO BE! We will see this in a separate lesson.

I recommend watching our lesson with 101 irregular verbs in the past tense . It includes example sentences.

Past Tense in English – Explained in Spanish

Nuestra explicación del tiempo pasado en inglés con una explicación en español:

Past Simple Tense Summary Chart

I hope you found this English lesson about the Past Simple Tense useful. If you did, please let other people know about it.

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Simple Past – Free Exercise

Complete the sentences with the simple past of the verbs in brackets.

• William (visit)     his grandparents last weekend. regular verb → add ed
• Jane (arrive)     an hour ago. regular verb that ends in e → add a d
• We (go)     to Bob's birthday party yesterday. irregular verb, 2nd verb form (go- went -gone)
• I (be)     on holiday last week. irregular verb, 2nd verb form (be- was/were -been) for I/he/she/it we use was
• She (see)     fire. irregular verb, 2nd verb form (see- saw -seen)

Make the sentences negative.

• I phoned Lucy last night. → I   Lucy last night. didn’t + infinitive
• You cleaned your room. → You   your room. didn’t + infinitive
• Olivia worked as an actress. → Olivia   as an actress. didn’t + infinitive
• We looked for the treasure. → We   for the treasure. didn’t + infinitive
• He spoke Spanish. → He   Spanish. didn’t + infinitive

Make simple past questions using the words in brackets.

• (you/dance)     at the party last night? did + subject + infinitive
• (she/do)     her homework? did + subject + infinitive
• (Robert/work)     at the post office? did + subject + infinitive
• (they/help)     you with the washing-up? did + subject + infinitive
• When (I/say)     that? question word + did + subject + infinitive

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• Cambridge Dictionary +Plus

Experience or experiment ?

We use experience as a verb when something happens to us, or we feel it. It is rather formal:

I experienced a feeling of deep sadness as I entered the refugee camp.

Customers have experienced problems in finding parking places at the mall.

We don’t use live instead of experience :

How children behave when they grow up depends on what they experience during early childhood.

Not: … what they live during early childhood .

Experiment as a verb means ‘try something in order to discover what it is like or to find out more about it’:

Scientists have experimented with liquids and gels in which plants can grow artificially.

I wish the government would stop experimenting with new teaching methods for our kids every couple of years.

We don’t use experiment when we are talking about feelings or things which happen:

She suddenly experienced a sensation of homesickness.

Not: … experimented a sensation …

The company’s Asia branch experienced a sharp drop in profits in 2007.

Not: … experimented a sharp drop …

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Definition of 'experiment'

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experiment in American English

Experiment in british english, examples of 'experiment' in a sentence experiment, related word partners experiment, trends of experiment.

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72 Easy Science Experiments Using Materials You Already Have On Hand

Because science doesn’t have to be complicated.

If there is one thing that is guaranteed to get your students excited, it’s a good science experiment! While some experiments require expensive lab equipment or dangerous chemicals, there are plenty of cool projects you can do with regular household items. We’ve rounded up a big collection of easy science experiments that anybody can try, and kids are going to love them!

Easy Chemistry Science Experiments

Easy physics science experiments, easy biology and environmental science experiments, easy engineering experiments and stem challenges.

1. Taste the Rainbow

Teach your students about diffusion while creating a beautiful and tasty rainbow! Tip: Have extra Skittles on hand so your class can eat a few!

Learn more: Skittles Diffusion

2. Crystallize sweet treats

Crystal science experiments teach kids about supersaturated solutions. This one is easy to do at home, and the results are absolutely delicious!

Learn more: Candy Crystals

3. Make a volcano erupt

This classic experiment demonstrates a chemical reaction between baking soda (sodium bicarbonate) and vinegar (acetic acid), which produces carbon dioxide gas, water, and sodium acetate.

Learn more: Best Volcano Experiments

4. Make elephant toothpaste

This fun project uses yeast and a hydrogen peroxide solution to create overflowing “elephant toothpaste.” Tip: Add an extra fun layer by having kids create toothpaste wrappers for plastic bottles.

5. Blow the biggest bubbles you can

Add a few simple ingredients to dish soap solution to create the largest bubbles you’ve ever seen! Kids learn about surface tension as they engineer these bubble-blowing wands.

Learn more: Giant Soap Bubbles

6. Demonstrate the “magic” leakproof bag

All you need is a zip-top plastic bag, sharp pencils, and water to blow your kids’ minds. Once they’re suitably impressed, teach them how the “trick” works by explaining the chemistry of polymers.

Learn more: Leakproof Bag

7. Use apple slices to learn about oxidation

Have students make predictions about what will happen to apple slices when immersed in different liquids, then put those predictions to the test. Have them record their observations.

Learn more: Apple Oxidation

8. Float a marker man

Their eyes will pop out of their heads when you “levitate” a stick figure right off the table! This experiment works due to the insolubility of dry-erase marker ink in water, combined with the lighter density of the ink.

Learn more: Floating Marker Man

9. Discover density with hot and cold water

There are a lot of easy science experiments you can do with density. This one is extremely simple, involving only hot and cold water and food coloring, but the visuals make it appealing and fun.

Learn more: Layered Water

10. Layer more liquids

This density demo is a little more complicated, but the effects are spectacular. Slowly layer liquids like honey, dish soap, water, and rubbing alcohol in a glass. Kids will be amazed when the liquids float one on top of the other like magic (except it is really science).

Learn more: Layered Liquids

11. Grow a carbon sugar snake

Easy science experiments can still have impressive results! This eye-popping chemical reaction demonstration only requires simple supplies like sugar, baking soda, and sand.

Learn more: Carbon Sugar Snake

12. Mix up some slime

Tell kids you’re going to make slime at home, and watch their eyes light up! There are a variety of ways to make slime, so try a few different recipes to find the one you like best.

13. Make homemade bouncy balls

These homemade bouncy balls are easy to make since all you need is glue, food coloring, borax powder, cornstarch, and warm water. You’ll want to store them inside a container like a plastic egg because they will flatten out over time.

Learn more: Make Your Own Bouncy Balls

14. Create eggshell chalk

Eggshells contain calcium, the same material that makes chalk. Grind them up and mix them with flour, water, and food coloring to make your very own sidewalk chalk.

Learn more: Eggshell Chalk

15. Make naked eggs

This is so cool! Use vinegar to dissolve the calcium carbonate in an eggshell to discover the membrane underneath that holds the egg together. Then, use the “naked” egg for another easy science experiment that demonstrates osmosis .

Learn more: Naked Egg Experiment

16. Turn milk into plastic

This sounds a lot more complicated than it is, but don’t be afraid to give it a try. Use simple kitchen supplies to create plastic polymers from plain old milk. Sculpt them into cool shapes when you’re done!

17. Test pH using cabbage

Teach kids about acids and bases without needing pH test strips! Simply boil some red cabbage and use the resulting water to test various substances—acids turn red and bases turn green.

Learn more: Cabbage pH

18. Clean some old coins

Use common household items to make old oxidized coins clean and shiny again in this simple chemistry experiment. Ask kids to predict (hypothesize) which will work best, then expand the learning by doing some research to explain the results.

Learn more: Cleaning Coins

19. Pull an egg into a bottle

This classic easy science experiment never fails to delight. Use the power of air pressure to suck a hard-boiled egg into a jar, no hands required.

Learn more: Egg in a Bottle

20. Blow up a balloon (without blowing)

Chances are good you probably did easy science experiments like this when you were in school. The baking soda and vinegar balloon experiment demonstrates the reactions between acids and bases when you fill a bottle with vinegar and a balloon with baking soda.

21 Assemble a DIY lava lamp

This 1970s trend is back—as an easy science experiment! This activity combines acid-base reactions with density for a totally groovy result.

22. Explore how sugary drinks affect teeth

The calcium content of eggshells makes them a great stand-in for teeth. Use eggs to explore how soda and juice can stain teeth and wear down the enamel. Expand your learning by trying different toothpaste-and-toothbrush combinations to see how effective they are.

Learn more: Sugar and Teeth Experiment

23. Mummify a hot dog

If your kids are fascinated by the Egyptians, they’ll love learning to mummify a hot dog! No need for canopic jars , just grab some baking soda and get started.

24. Extinguish flames with carbon dioxide

This is a fiery twist on acid-base experiments. Light a candle and talk about what fire needs in order to survive. Then, create an acid-base reaction and “pour” the carbon dioxide to extinguish the flame. The CO2 gas acts like a liquid, suffocating the fire.

25. Send secret messages with invisible ink

Turn your kids into secret agents! Write messages with a paintbrush dipped in lemon juice, then hold the paper over a heat source and watch the invisible become visible as oxidation goes to work.

Learn more: Invisible Ink

26. Create dancing popcorn

This is a fun version of the classic baking soda and vinegar experiment, perfect for the younger crowd. The bubbly mixture causes popcorn to dance around in the water.

27. Shoot a soda geyser sky-high

You’ve always wondered if this really works, so it’s time to find out for yourself! Kids will marvel at the chemical reaction that sends diet soda shooting high in the air when Mentos are added.

Learn more: Soda Explosion

28. Send a teabag flying

Hot air rises, and this experiment can prove it! You’ll want to supervise kids with fire, of course. For more safety, try this one outside.

Learn more: Flying Tea Bags

29. Create magic milk

This fun and easy science experiment demonstrates principles related to surface tension, molecular interactions, and fluid dynamics.

Learn more: Magic Milk Experiment

30. Watch the water rise

Learn about Charles’s Law with this simple experiment. As the candle burns, using up oxygen and heating the air in the glass, the water rises as if by magic.

Learn more: Rising Water

31. Learn about capillary action

Kids will be amazed as they watch the colored water move from glass to glass, and you’ll love the easy and inexpensive setup. Gather some water, paper towels, and food coloring to teach the scientific magic of capillary action.

Learn more: Capillary Action

32. Give a balloon a beard

Equally educational and fun, this experiment will teach kids about static electricity using everyday materials. Kids will undoubtedly get a kick out of creating beards on their balloon person!

Learn more: Static Electricity

33. Find your way with a DIY compass

Here’s an old classic that never fails to impress. Magnetize a needle, float it on the water’s surface, and it will always point north.

Learn more: DIY Compass

34. Crush a can using air pressure

Sure, it’s easy to crush a soda can with your bare hands, but what if you could do it without touching it at all? That’s the power of air pressure!

35. Tell time using the sun

While people use clocks or even phones to tell time today, there was a time when a sundial was the best means to do that. Kids will certainly get a kick out of creating their own sundials using everyday materials like cardboard and pencils.

Learn more: Make Your Own Sundial

36. Launch a balloon rocket

Grab balloons, string, straws, and tape, and launch rockets to learn about the laws of motion.

37. Make sparks with steel wool

All you need is steel wool and a 9-volt battery to perform this science demo that’s bound to make their eyes light up! Kids learn about chain reactions, chemical changes, and more.

Learn more: Steel Wool Electricity

38. Levitate a Ping-Pong ball

Kids will get a kick out of this experiment, which is really all about Bernoulli’s principle. You only need plastic bottles, bendy straws, and Ping-Pong balls to make the science magic happen.

39. Whip up a tornado in a bottle

There are plenty of versions of this classic experiment out there, but we love this one because it sparkles! Kids learn about a vortex and what it takes to create one.

Learn more: Tornado in a Bottle

40. Monitor air pressure with a DIY barometer

This simple but effective DIY science project teaches kids about air pressure and meteorology. They’ll have fun tracking and predicting the weather with their very own barometer.

Learn more: DIY Barometer

41. Peer through an ice magnifying glass

Students will certainly get a thrill out of seeing how an everyday object like a piece of ice can be used as a magnifying glass. Be sure to use purified or distilled water since tap water will have impurities in it that will cause distortion.

Learn more: Ice Magnifying Glass

42. String up some sticky ice

Can you lift an ice cube using just a piece of string? This quick experiment teaches you how. Use a little salt to melt the ice and then refreeze the ice with the string attached.

Learn more: Sticky Ice

43. “Flip” a drawing with water

Light refraction causes some really cool effects, and there are multiple easy science experiments you can do with it. This one uses refraction to “flip” a drawing; you can also try the famous “disappearing penny” trick .

Learn more: Light Refraction With Water

44. Color some flowers

We love how simple this project is to re-create since all you’ll need are some white carnations, food coloring, glasses, and water. The end result is just so beautiful!

45. Use glitter to fight germs

Everyone knows that glitter is just like germs—it gets everywhere and is so hard to get rid of! Use that to your advantage and show kids how soap fights glitter and germs.

Learn more: Glitter Germs

46. Re-create the water cycle in a bag

You can do so many easy science experiments with a simple zip-top bag. Fill one partway with water and set it on a sunny windowsill to see how the water evaporates up and eventually “rains” down.

Learn more: Water Cycle

47. Learn about plant transpiration

Your backyard is a terrific place for easy science experiments. Grab a plastic bag and rubber band to learn how plants get rid of excess water they don’t need, a process known as transpiration.

Learn more: Plant Transpiration

48. Clean up an oil spill

Before conducting this experiment, teach your students about engineers who solve environmental problems like oil spills. Then, have your students use provided materials to clean the oil spill from their oceans.

Learn more: Oil Spill

49. Construct a pair of model lungs

Kids get a better understanding of the respiratory system when they build model lungs using a plastic water bottle and some balloons. You can modify the experiment to demonstrate the effects of smoking too.

Learn more: Model Lungs

50. Experiment with limestone rocks

Kids  love to collect rocks, and there are plenty of easy science experiments you can do with them. In this one, pour vinegar over a rock to see if it bubbles. If it does, you’ve found limestone!

Learn more: Limestone Experiments

51. Turn a bottle into a rain gauge

All you need is a plastic bottle, a ruler, and a permanent marker to make your own rain gauge. Monitor your measurements and see how they stack up against meteorology reports in your area.

Learn more: DIY Rain Gauge

52. Build up towel mountains

This clever demonstration helps kids understand how some landforms are created. Use layers of towels to represent rock layers and boxes for continents. Then pu-u-u-sh and see what happens!

Learn more: Towel Mountains

53. Take a play dough core sample

Learn about the layers of the earth by building them out of Play-Doh, then take a core sample with a straw. ( Love Play-Doh? Get more learning ideas here. )

Learn more: Play Dough Core Sampling

54. Project the stars on your ceiling

Use the video lesson in the link below to learn why stars are only visible at night. Then create a DIY star projector to explore the concept hands-on.

Learn more: DIY Star Projector

55. Make it rain

Use shaving cream and food coloring to simulate clouds and rain. This is an easy science experiment little ones will beg to do over and over.

Learn more: Shaving Cream Rain

56. Blow up your fingerprint

This is such a cool (and easy!) way to look at fingerprint patterns. Inflate a balloon a bit, use some ink to put a fingerprint on it, then blow it up big to see your fingerprint in detail.

57. Snack on a DNA model

Twizzlers, gumdrops, and a few toothpicks are all you need to make this super-fun (and yummy!) DNA model.

Learn more: Edible DNA Model

58. Dissect a flower

Take a nature walk and find a flower or two. Then bring them home and take them apart to discover all the different parts of flowers.

59. Craft smartphone speakers

No Bluetooth speaker? No problem! Put together your own from paper cups and toilet paper tubes.

Learn more: Smartphone Speakers

60. Race a balloon-powered car

Kids will be amazed when they learn they can put together this awesome racer using cardboard and bottle-cap wheels. The balloon-powered “engine” is so much fun too.

Learn more: Balloon-Powered Car

61. Build a Ferris wheel

You’ve probably ridden on a Ferris wheel, but can you build one? Stock up on wood craft sticks and find out! Play around with different designs to see which one works best.

Learn more: Craft Stick Ferris Wheel

62. Design a phone stand

There are lots of ways to craft a DIY phone stand, which makes this a perfect creative-thinking STEM challenge.

63. Conduct an egg drop

Put all their engineering skills to the test with an egg drop! Challenge kids to build a container from stuff they find around the house that will protect an egg from a long fall (this is especially fun to do from upper-story windows).

Learn more: Egg Drop Challenge Ideas

64. Engineer a drinking-straw roller coaster

STEM challenges are always a hit with kids. We love this one, which only requires basic supplies like drinking straws.

Learn more: Straw Roller Coaster

65. Build a solar oven

Explore the power of the sun when you build your own solar ovens and use them to cook some yummy treats. This experiment takes a little more time and effort, but the results are always impressive. The link below has complete instructions.

Learn more: Solar Oven

66. Build a Da Vinci bridge

There are plenty of bridge-building experiments out there, but this one is unique. It’s inspired by Leonardo da Vinci’s 500-year-old self-supporting wooden bridge. Learn how to build it at the link, and expand your learning by exploring more about Da Vinci himself.

Learn more: Da Vinci Bridge

67. Step through an index card

This is one easy science experiment that never fails to astonish. With carefully placed scissor cuts on an index card, you can make a loop large enough to fit a (small) human body through! Kids will be wowed as they learn about surface area.

68. Stand on a pile of paper cups

Combine physics and engineering and challenge kids to create a paper cup structure that can support their weight. This is a cool project for aspiring architects.

Learn more: Paper Cup Stack

69. Test out parachutes

Gather a variety of materials (try tissues, handkerchiefs, plastic bags, etc.) and see which ones make the best parachutes. You can also find out how they’re affected by windy days or find out which ones work in the rain.

Learn more: Parachute Drop

70. Recycle newspapers into an engineering challenge

It’s amazing how a stack of newspapers can spark such creative engineering. Challenge kids to build a tower, support a book, or even build a chair using only newspaper and tape!

Learn more: Newspaper STEM Challenge

71. Use rubber bands to sound out acoustics

Explore the ways that sound waves are affected by what’s around them using a simple rubber band “guitar.” (Kids absolutely love playing with these!)

Learn more: Rubber Band Guitar

72. Assemble a better umbrella

Challenge students to engineer the best possible umbrella from various household supplies. Encourage them to plan, draw blueprints, and test their creations using the scientific method.

Learn more: Umbrella STEM Challenge

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