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

Questions

1. 1. What does a food chain show?

   • how plants drink water
   • how energy passes from one living thing to another
   • where animals live
   • how animals grow
   Check

2. 2. Why is a plant called a producer?

   • It lives in the sea.
   • It makes its own food using sunlight.
   • It eats animals.
   • It eats other living things.
   Check

3. 3. Why are animals called consumers?

   • They never eat.
   • They make their own food.
   • They eat other living things to get energy.
   • They use sunlight to grow.
   Check

4. 4. Why does each food chain start with a plant?

   • Plants are the biggest.
   • Plants move fastest.
   • Plants make food from the Sun's energy.
   • Animals eat only plants.
   Check

5. 5. Which way do the arrows in a food chain point?

   • from right to left always
   • upwards only
   • from the food to the animal that eats it
   • from the eater to its food
   Check

6. 6. In the food chain corn → mouse → cat, which is the producer?

   • mouse
   • corn
   • the Sun
   • cat
   Check

7. 7. In grass → goat → human, what are the goat and the human?

   • consumers
   • the Sun
   • plants
   • producers
   Check

8. 8. Which is a correct food chain for the sea?

   • seaweed → fish → shark
   • fish → seaweed → shark
   • shark → fish → seaweed
   • shark → seaweed → fish
   Check

9. 9. Which is a correct food chain for a desert?

   • plant → mouse → snake
   • mouse → plant → snake
   • snake → mouse → plant
   • snake → plant → mouse
   Check

10. 10. Which is a correct food chain for a forest?

    • frog → plant → hawk → caterpillar
    • hawk → frog → caterpillar → plant
    • plant → caterpillar → frog → hawk
    • caterpillar → hawk → plant → frog
    Check

11. 11. In grass → rat → snake → hawk, what would happen if there was no grass?

    • The hawks would have more food.
    • The rats would die, then the snakes and hawks would go hungry.
    • Nothing would change.
    • The snakes would eat grass instead.
    Check

12. 12. In grass → rat → snake → hawk, the snakes all hide underground in cold weather. What might happen to the hawks?

    • They would grow bigger.
    • They would eat more snakes.
    • They would eat grass.
    • They would go hungry.
    Check

13. 13. What does energy from food let you do?

    • make food from sunlight
    • grow and move
    • become a plant
    • stop breathing
    Check

14. 14. Name an animal that only eats plants.

    • a snake
    • a hawk
    • a shark
    • a goat
    Check

15. 15. What makes the corn plant's seeds?

    • the soil on its own
    • the corn plant, using the Sun's energy
    • the cat
    • the mouse
    Check