Food Chains and Ecosystems

Grade 3 Science Worksheet - Building Confidence

Circle the answer.

1. 1.

   In the chain grass → rabbit → hawk, which is the producer?

   • hawk
   • rabbit
   • grass
2. 2.

   Which food chain is in the right order?

   • caterpillar → leaves → bird
   • leaves → caterpillar → bird
   • bird → caterpillar → leaves
3. 3.

   What does a plant use to make its own food?

   • sunlight
   • other animals
   • dead leaves
4. 4.

   Mushrooms grow on a fallen log and break it down. What role do the mushrooms have?

   • producer
   • decomposer
   • predator
5. 5.

   In algae → snail → fish, what does the snail eat?

   • sunlight
   • algae
   • fish
6. 6.

   What do the arrows in a food chain show?

   • which animal is fastest
   • which animal is biggest
   • which way the energy moves
7. 7.

   In seeds → mouse → owl, which animal is the predator?

   • seeds
   • owl
   • mouse
8. 8.

   Which living thing is a consumer?

   • a patch of grass
   • a deer
   • an oak tree
9. 9.

   A frog lives in a pond and eats insects. Why does the frog need the pond habitat?

   • it keeps the frog dry all day
   • it gives the frog food and water
   • it gives the frog fur to stay warm
10. 10.

    Worms eat dead leaves in the soil. What do they put back into the soil?

    • seeds for new trees
    • sunlight for plants
    • nutrients for plants