Worksheet

Food Chains and Ecosystems

Grade 3 - Science - Challenge Me

NameDate

  1. Which food chain is correctly ordered for a woodland?

    • wolf -> deer -> berry bush
    • berry bush -> deer -> wolf
    • deer -> berry bush -> wolf
    • berry bush -> wolf -> deer

  2. In this chain, which organism is the producer: grass -> rabbit -> hawk?

    • mushrooms
    • rabbit
    • grass
    • hawk

  3. What role does the mouse have in corn -> mouse -> owl?

    • predator
    • decomposer
    • producer
    • consumer

  4. What would most directly affect the fish if the snail population disappeared?

    • the predator would need no food
    • energy flow would stay the same
    • less food would be available
    • more prey would be available

  5. Which organism helps break down dead material in the meadow?

    • mushrooms
    • hawk
    • rabbit
    • grass

  6. Which food chain is correctly ordered for a forest?

    • leaves -> bird -> caterpillar
    • bird -> caterpillar -> leaves
    • leaves -> caterpillar -> bird
    • caterpillar -> leaves -> bird

  7. In this chain, which organism is the producer: berry bush -> deer -> wolf?

    • mushrooms
    • wolf
    • berry bush
    • deer

  8. What role does the rabbit have in grass -> rabbit -> hawk?

    • predator
    • decomposer
    • consumer
    • producer

  9. What would most directly affect the bird if the caterpillar population disappeared?

    • energy flow would stay the same
    • less food would be available
    • more prey would be available
    • the predator would need no food

  10. Which organism helps break down dead material in the ocean?

    • krill
    • bacteria
    • phytoplankton
    • penguin
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