2nd grade simple and compound sentences worksheets

Simple and compound sentences worksheets for second grade show one sentence at a time to label. Simple means one who-did-what; compound means two, joined by a comma and a word like and, but, or so. The examples stay short, so the two shapes are easy to hear.

Free printable PDF worksheet, aligned to Common Core L.2.1.f.

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The kind of sentences you'll get

Read each sentence. Circle the letter of the correct label.

  1. “Grandpa told a story, and we all listened.” This is: . a compound sentence · a simple sentence

    Answer: a compound sentence

  2. “The whistle blew, and the swimmers dove in.” This is: . a simple sentence · a compound sentence
  3. “The town pool opens in June.” This is: . a simple sentence · a compound sentence

Every print pulls a fresh set of sentences at this level, so a make-up test or a second sibling never gets the same sheet.

What's on each sheet

Every version prints on US Letter or A4, with its answer key on the last page.

How to teach this

Teach the two-hands test: cover the second half of the sentence with a hand and read the first half alone. Then swap. If both halves stand as sentences, it is compound. Kids love catching the halves that cannot stand alone.

Watch for: Kids see the word and anywhere and shout compound. The test is whether BOTH sides of the joining word could stand alone as sentences. Long does not mean compound. A simple sentence can carry many describing words and still have one who-did-what pair.

Common questions about simple and compound sentences

What joining words show up?
And, but, or, and so, always with a comma before them when they join two complete ideas. Those four cover nearly every compound sentence a second grader reads or writes.
Why does this matter so early?
Labeling the two shapes now is what makes combining sentences and fixing run-ons make sense later. Kids who can hear two who-did-what pairs stop gluing sentences together with a bare comma.

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Aligned to Common Core L.2.1.f. Reviewed by the One more sheet team. Content version 178, updated August 2026.

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