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Simple or Compound? is a free printable Grade 3 English worksheet on telling one complete thought from two joined ones, aligned to Common Core standard L.3.1. It prints 3 questions with an answer key on its own sheet of paper, in 25 versions that each ask different questions, so no two students in the class work from the same page. Print it from the browser or download it as a PDF — no account, no email.

Set 5 of 25 · the same problems every time you open this link.

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Set 1 has all 25 in a single PDF. All 25 sets ask different questions.

Simple or Compound?

L.3.1

NameDate

Sort each sentence into the right column.

1.Sort each one: Simple sentence or Compound sentence?

Sort: The dog barked, and the cat ran away., We ate lunch under the tree., We could bake a cake, or we could make pancakes., Grandpa fixed the old clock., It was cold, so we wore our hats., The moon rose over the hill.

Simple sentenceCompound sentence
2.Sort each one: Simple sentence or Compound sentence?

Sort: A bird built a nest in the hedge., The bread rose in the oven., I wanted to go out, but it was raining., The path was icy, but nobody fell., My sister plays the violin., Mia found a shell, and she gave it to me.

Simple sentenceCompound sentence
3.Sort each one: Simple sentence or Compound sentence?

Sort: You can draw a picture, or you can write a poem., The puppy chewed my sock., The store was closed, so we went home., The train left the station., The baby fell asleep., Leo likes apples, but his brother likes pears.

Simple sentenceCompound sentence

LessonPrint · L.3.1 · Set 5 · free to copy for classroom use

Answer key — Simple or Compound?

Set 5. Prints on its own sheet.

  1. 1.1. Grandpa fixed the old clock. — Simple sentence 2. It was cold, so we wore our hats. — Compound sentence 3. The dog barked, and the cat ran away. — Compound sentence 4. The moon rose over the hill. — Simple sentence 5. We ate lunch under the tree. — Simple sentence 6. We could bake a cake, or we could make pancakes. — Compound sentence
  2. 2.1. A bird built a nest in the hedge. — Simple sentence 2. I wanted to go out, but it was raining. — Compound sentence 3. Mia found a shell, and she gave it to me. — Compound sentence 4. My sister plays the violin. — Simple sentence 5. The bread rose in the oven. — Simple sentence 6. The path was icy, but nobody fell. — Compound sentence
  3. 3.1. Leo likes apples, but his brother likes pears. — Compound sentence 2. The baby fell asleep. — Simple sentence 3. The puppy chewed my sock. — Simple sentence 4. The store was closed, so we went home. — Compound sentence 5. The train left the station. — Simple sentence 6. You can draw a picture, or you can write a poem. — Compound sentence

Last reviewed 2026-09-05. Aligned to L.3.1 of the Common Core State Standards for English Language Arts.