Grade 3 · Grammar · Sentence structure

3rd Grade Conjunctions worksheets

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Conjunctions

Grade 3 Grammar Worksheet

NameDate

Circle the answer, or write your answer on the lines.

1.
Which word best completes the sentence? “Wash your hands ___ you eat, so they are clean for lunch.”
- after
- because
- unless
- before
2.
Which word best completes the sentence? “We will stay inside ___ the rain stops.”
- so
- although
- until
- because
3.
Which word best completes the sentence? “Leo brushed his teeth ___ he ate breakfast, so his mouth felt fresh all morning.”
- or
- after
- until
- unless
4.
Which word is the conjunction? “We cheered when the team scored.”
- when
- cheered
- team
- scored
5.
Which word best completes the sentence? “You will get wet ___ you forget your umbrella.”
- if
- until
- so
- although
6.
Which sentence makes sense?
- After the movie ended, we went home.
- Unless the movie ended, we went home.
- Although the movie ended, we went home.
- Until the movie ended, we went home.
7.
Which word best completes the sentence? “The dog barks ___ someone knocks on the door.”
- although
- so
- when
- or
8.
Which word best completes the sentence? “Sam played a game ___ he finished his homework.”
- until
- after
- unless
- or
9.
Which word is the conjunction? “Mom read a book while the baby slept.”
- book
- while
- read
- slept
Join the two sentences with when, after, before, or until. Draft: The bell rang. We went to lunch.

3rd Grade Conjunctions worksheet 1 – printable PDF — Download PDF: 1 2 3 4 5 6

About this worksheet

Conjunctions connect words, phrases, and clauses so writers can show how ideas relate matters in third grade because students are writing longer answers and need grammar choices that make meaning clear. Third graders may use and for every connection, even when the meaning calls for a contrast, a choice, or a reason. This worksheet keeps the work inside complete sentences instead of isolated labels. Students choose conjunctions for addition, contrast, choice, cause, and time, then revise combined sentences for clear meaning. The items rotate across identifying the feature, choosing a correct revision, explaining what a word or mark does, and rejecting common distractors.

Support versions use familiar school contexts and shorter sentences. Standard and challenge versions add closer choices and more varied wording. Encourage your child to read the whole sentence aloud before answering, then check whether the answer fits both the grammar rule and the meaning. That habit prevents guessing from one nearby word and builds editing habits for real writing.

What your child will learn

Use and, but, or, and so
Use because, when, and until
Use although, unless, and while
Join two sentences so the meaning stays clear

Common Core standard: L.3.1.H

Worked example

'Priya added supports because the bridge bent' uses because to show a reason.

Common mistake

Combining ideas with a conjunction that changes the meaning.

Helpful hint

Read the sentence with each choice. Which one makes sense?

Next skill: Prepositions and Prepositional Phrases Earlier: Commas and Quotation Marks

Questions parents ask

What is the most common mistake with conjunctions?

Combining ideas with a conjunction that changes the meaning.

How can I help my child with conjunctions?

Read the sentence with each choice. Which one makes sense?

Are these 3rd grade grammar worksheets free to print?

Yes. All 6 printable versions on this page are free to download and print, with no account needed.

More 3rd grade sentence structure

See all sentence structure

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