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Grade 3 Fossils Worksheet with Answers

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

Unit 3: Ecosystems & ChangeFossilsNGSS 3-LS4-1

What fossils are, how they form, and what they tell us about life and environments long ago. This free upper elementary worksheet has 13 questions and a full answer key. Print it or save it as a PDF — every answer is checked by code, not guessed.

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Fossils

Grade 3 · Science

Score___ / 13

Name

Class

Date

Learning goal: Fossils · NGSS 3-LS4-1

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

fossiloldest layeryoungest layer
123
  1. 1
  2. 2
  3. 3
Part B

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

  1. 4What scientist studies fossils?
  2. 5Fossil ferns are found in a cold place. What was the climate like long ago?
  3. 6In what kind of rock are most fossils found?
  4. 7Can footprints become fossils?
  • AWarm and wet
  • BYes
  • CPaleontologist
  • DSedimentary rock
Part C

Answer each question. Use full sentences where you can.

  1. 8

    A fish fossil is found on a mountain. What does that suggest?

  2. 9

    What does extinct mean?

  3. 10

    What is a fossil?

  4. 11

    Are deeper rock layers usually older or younger?

    OlderYounger
  5. 12

    What can fossils tell us?

  6. 13

    Why are fossils of soft-bodied animals rare?

★ Challenge corner for fast finishers

I change from a caterpillar into something with wings. What am I?

How did I do?

Teacher's comments

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

Answer key (click to show)
  1. 1.youngest layer
  2. 2.oldest layer
  3. 3.fossil
  4. 4.C — a paleontologist
  5. 5.A — warm and wet
  6. 6.D — sedimentary rock
  7. 7.B — yes (trace fossils)
  8. 8.the area was once under water
  9. 9.no longer living anywhere on Earth
  10. 10.the preserved remains or traces of a living thing from long ago
  11. 11.older
  12. 12.what living things and environments were like long ago
  13. 13.soft parts rot before they can be preserved
  14. ★a butterfly (challenge corner)

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  • 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.
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