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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 13 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: It was cold, so we wore our hats., The path was icy, but nobody fell., We could bake a cake, or we could make pancakes., The puppy chewed my sock., A fox ran across the road., Rain dripped from the roof.

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

Sort: Leo likes apples, but his brother likes pears., The store was closed, so we went home., Mia found a shell, and she gave it to me., The baby fell asleep., Grandpa fixed the old clock., We ate lunch under the tree.

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

Sort: The moon rose over the hill., The bread rose in the oven., The bell rang, and the children lined up., The dog barked, and the cat ran away., The bread rose, and Dad sliced it., The train left the station.

Simple sentenceCompound sentence

LessonPrint · L.3.1 · Set 13 · free to copy for classroom use

Answer key — Simple or Compound?

Set 13. Prints on its own sheet.

  1. 1.1. A fox ran across the road. — Simple sentence 2. It was cold, so we wore our hats. — Compound sentence 3. Rain dripped from the roof. — Simple sentence 4. The path was icy, but nobody fell. — Compound sentence 5. The puppy chewed my sock. — Simple sentence 6. We could bake a cake, or we could make pancakes. — Compound sentence
  2. 2.1. Grandpa fixed the old clock. — Simple sentence 2. Leo likes apples, but his brother likes pears. — Compound sentence 3. Mia found a shell, and she gave it to me. — Compound sentence 4. The baby fell asleep. — Simple sentence 5. The store was closed, so we went home. — Compound sentence 6. We ate lunch under the tree. — Simple sentence
  3. 3.1. The bell rang, and the children lined up. — Compound sentence 2. The bread rose in the oven. — Simple sentence 3. The bread rose, and Dad sliced it. — Compound sentence 4. The dog barked, and the cat ran away. — Compound sentence 5. The moon rose over the hill. — Simple sentence 6. The train left the station. — Simple sentence

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