Science 6 · Unit 4: Food chains and food webs · Cambridge Primary Science Stage 6

Questions

1. 1. What is a producer?

   • an animal that eats plants
   • an animal that eats meat
   • a living thing that makes its own food using the Sun's energy
   • an animal that eats both
   Check

2. 2. What do the arrows in a food chain show?

   • the direction food and energy move
   • which animal is biggest
   • where animals live
   • the direction animals walk
   Check

3. 3. What is the order in every food chain?

   • carnivore → herbivore → plant
   • Sun → carnivore
   • producer → consumer
   • consumer → producer
   Check

4. 4. What is a herbivore?

   • an animal that eats both
   • an animal that eats only plants
   • a plant
   • an animal that eats only meat
   Check

5. 5. What is an omnivore?

   • a producer
   • an animal that eats only meat
   • an animal that eats only plants
   • an animal that eats both plants and animals
   Check

6. 6. Which is a correct food chain?

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

7. 7. Why is a food web more realistic than a food chain?

   • Most animals eat more than one kind of food.
   • It has no producers.
   • It has fewer animals.
   • Animals only eat one food.
   Check

8. 8. Where does the energy in a food chain first come from?

   • the soil
   • the top predator
   • the Sun
   • the water
   Check

9. 9. What happens to the amount of energy along a food chain?

   • It doubles.
   • It increases at each link.
   • It gets less at each link.
   • It stays the same.
   Check

10. 10. Why is energy lost at each link of a food chain?

    • Animals store it all.
    • Animals use some to stay alive and lose some as heat.
    • Plants take it back.
    • The Sun removes it.
    Check

11. 11. How does a hawk depend on producers?

    • It doesn't.
    • It eats plants directly.
    • It makes its own food.
    • Its prey's energy came from plants.
    Check

12. 12. In the food web, the orangutan eats fruit and is eaten by tigers and pythons. What is the orangutan?

    • the Sun
    • a producer
    • a consumer
    • a decomposer
    Check

13. 13. Which is a food chain with four links?

    • algae → small fish
    • shark → turtle
    • plant plankton → great white shark
    • plant plankton → jelly fish → sea turtle → great white shark
    Check

14. 14. Predict what would happen to sea turtles if all the great white sharks were killed.

    • Nothing would change.
    • Turtles would eat sharks.
    • The number of sea turtles would increase.
    • The turtles would all die.
    Check

15. 15. In the Namib Desert, ants, beetles and termites eat seeds and grass. What are they?

    • herbivores
    • carnivores
    • producers
    • omnivores
    Check

16. 16. In the Namib food web, the sidewinder adder eats lizards. What is the adder?

    • a producer
    • a herbivore
    • a carnivore
    • an omnivore
    Check