MAKE IT YOURS

A world for every learner

Choose a grade to discover its colours and creative world.

Grade 3 Life Cycles Worksheet with Answers

Grade 3 (US) · Year 4 (UK) · Class 3 (India) · Science

Unit 2: Life Cycles & TraitsLife CyclesNGSS 3-LS1-1

Life cycles of plants and animals, including complete and incomplete metamorphosis. This free upper elementary worksheet has 15 questions and a full answer key. Print it or save it as a PDF — every answer is checked by code, not guessed.

Save to PinterestJump to answer key
  • Answer keys checked by code
  • No ads, ever
  • No student accounts needed
  • Safety & privacy
Practice Sheetaethelsystems.com

Life Cycles

Grade 3 · Science

Score___ / 15

Name

Class

Date

Learning goal: Life Cycles · NGSS 3-LS1-1

Directions: This worksheet has 3 parts. Read the instructions at the start of each part.

Part A

Label the diagram. Use the words in the box.

Word bank

butterflyeggchrysaliscaterpillar
1234
  1. 1
  2. 2
  3. 3
  4. 4
Part B

Match each clue to the right word. Write the letter in the box.

  1. 5What is the stage between caterpillar and butterfly?
  2. 6A grasshopper hatches looking like a small adult. What is this called?
  3. 7Does a dog go through metamorphosis?
  4. 8Why do plants make flowers?
  5. 9What does a seed grow into first?
  6. 10What hatches from a frog egg?
  • APupa
  • BIncomplete metamorphosis
  • CTo make seeds
  • DSeedling
  • ENo
  • FTadpole
Part C

Answer each question. Use full sentences where you can.

  1. 11

    What are the stages of a plant's life cycle?

  2. 12

    What is metamorphosis?

  3. 13

    What are the stages of a frog's life cycle?

  4. 14

    What is the same about all life cycles?

  5. 15

    What are the stages of a butterfly's life cycle?

★ Challenge corner for fast finishers

I am the only planet known to have life. What am I?

How did I do?

Teacher's comments

Free printable worksheets with answer keys · aethelsystems.com/worksheets/science/3/life_cycles

Answer key (click to show)
  1. 1.egg
  2. 2.caterpillar
  3. 3.chrysalis
  4. 4.butterfly
  5. 5.A — pupa (chrysalis)
  6. 6.B — incomplete metamorphosis
  7. 7.E — no
  8. 8.C — to make seeds (reproduce)
  9. 9.D — a seedling (sprout)
  10. 10.F — a tadpole
  11. 11.seed, seedling, adult plant, flower, fruit with seeds
  12. 12.a big change in body form during an animal's life
  13. 13.egg, tadpole, froglet, adult frog
  14. 14.birth, growth, reproduction and death
  15. 15.egg, larva (caterpillar), pupa (chrysalis), adult
  16. ★Earth (challenge corner)

Need another Life Cycles worksheet?

Generate unlimited fresh versions at easy, medium or hard difficulty, each with its own answer key. Free during our launch — no card needed.

Create a free account

How to use this worksheet

  • Use it as a 10–15 minute warm-up or homework task rather than a long drill.
  • Ask students to show their working so you can see where a mistake started, not just that it happened.
  • Mark it with the answer key together, then print a fresh version of the same topic to practise the questions they missed.

Related worksheets

Life Cycles at other grades

Grade 2

More Grade 3 Science worksheets

Grade 3 Parts of a PlantGrade 3 Inherited Traits & the EnvironmentGrade 3 Living in GroupsGrade 3 Balanced & Unbalanced ForcesGrade 3 Magnets & MagnetismGrade 3 States of MatterGrade 3 Adaptations & SurvivalGrade 3 Animal Habitats

Can't find what you need? Tell us which worksheet to make next.

Frequently asked questions

Does this Grade 3 Life Cycles worksheet come with answers?

Yes. The full answer key is on this page, and it prints on its own page after the questions. Every answer is calculated or checked by code rather than written by an AI model, so the key is always correct.

How do I print it or save it as a PDF?

Click "Download PDF" to save a ready-to-print PDF with the answer key on the last page, or click "Print" to send the worksheet and answer key straight to your printer.

Can I get a different Life Cycles worksheet?

Yes. Create a free account to generate as many fresh Grade 3 Life Cycles worksheets as you like, at easy, medium or hard difficulty, each with its own answer key.

Is this worksheet free?

Yes. This worksheet is free to print, and Practice Sheet is free to use during our launch with no card needed.