Science 3 · Unit 4: Staying alive · Cambridge Primary Science Stage 3

Questions

1. 1. What is a fossil?

   • a living animal
   • an impression or remains of a living thing from long ago
   • a type of metal
   • a kind of rock that was never alive
   Check

2. 2. How is a fossil made?

   • A rock grows into an animal shape.
   • The hard parts of a dead animal press into mud, which slowly turns to rock.
   • An animal paints itself on a rock.
   • Scientists carve it.
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3. 3. Which parts of an animal usually make a fossil?

   • the skin
   • the eyes
   • the blood
   • the hard parts, like bones and teeth
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4. 4. Is a fossil the real animal?

   • Yes, it is asleep.
   • No, it is an impression made in rock.
   • No, it is a plastic model.
   • Yes, it is the living animal.
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5. 5. What was a Pterodactyl?

   • a fish
   • an insect
   • a mammal
   • a flying reptile
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6. 6. Which animal was the first bird, known from fossils?

   • a chicken
   • Pterodactyl
   • Archaeopteryx
   • a dragonfly
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7. 7. Where are most fossils found?

   • inside trees
   • in the sky
   • buried under rocks deep underground
   • in living animals
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8. 8. How can a fossil buried deep come to the surface?

   • The sea or a river washes the rock away.
   • It floats up.
   • It grows upwards.
   • Animals dig it up.
   Check

9. 9. Why do scientists use small tools and paintbrushes to dig up fossils?

   • to paint the fossils
   • because big tools are too heavy
   • to make them dirty
   • so the fossils are not damaged
   Check

10. 10. Who was Mary Anning?

    • a doctor who studied teeth
    • a famous fossil collector who lived by the sea in England
    • the inventor of the light bulb
    • an astronaut
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11. 11. An insect is trapped in sticky tree gum long ago. What can this become?

    • a living insect
    • a fossil insect
    • a new tree
    • a rock with no shape
    Check

12. 12. You press a shell into clay, fill the shape with plaster and let it dry. What have you made?

    • a food chain
    • a model of a fossil
    • a living shell
    • a real fossil
    Check

13. 13. A fossil has sharp, pointed teeth. What did the animal probably eat?

    • only leaves
    • other animals
    • only grass
    • nothing
    Check

14. 14. A fossil animal has fins and a tail like a fish. Where did it probably live?

    • in a desert
    • in a tree
    • in water
    • in the sky
    Check