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Food chains Quiz for Grade 4

10 science questions on food chains with answers, written for Grade 4. Use it as it is, change any question, print it with an answer key, or give it online and let it grade itself.

1.
What is the role of a producer in a food chain? (Multiple choice)
  1. They decompose dead plants
  2. They eat other animals
  3. They make their own food using sunlight
  4. They hunt for food at night
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They make their own food using sunlight

Producers make their own food through photosynthesis, providing energy for the food chain.
2.
Which of these animals is a primary consumer? (Multiple choice)
  1. Lion
  2. Eagle
  3. Mushroom
  4. Grasshopper
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Grasshopper

Primary consumers eat producers like plants; grasshoppers eat plants.
3.
What happens to energy as it moves up the food chain? (Multiple choice)
  1. It decreases
  2. It increases
  3. It disappears completely
  4. It stays the same
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It decreases

Energy decreases at each level because some is used or lost as heat.
4.
True or False: Decomposers are part of the food chain because they break down dead plants and animals. (True or false)
  1. True
  2. False
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True

Decomposers recycle nutrients by breaking down dead matter.
5.
Name the animal at the top of a food chain that eats other animals but is not usually eaten by others. (Identification)
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Top predator

Top predators are at the highest level and have no natural predators.
6.
A _____ eats only plants in a food chain. (Fill in the blank)
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herbivore

Herbivores consume only plants.
7.
Which of these is an example of a decomposer? (Multiple choice)
  1. Rabbit
  2. Earthworm
  3. Wolf
  4. Oak tree
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Earthworm

Earthworms break down dead material, helping decomposition.
8.
If a fox eats a rabbit and the rabbit eats grass, what is the fox in this food chain? (Multiple choice)
  1. Primary consumer
  2. Producer
  3. Secondary consumer
  4. Decomposer
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Secondary consumer

The fox eats the primary consumer (rabbit), so it is a secondary consumer.
9.
Match each term with its description. (Matching type)
1. Producer
A. Eats only plants
2. Herbivore
B. Eats other animals
3. Carnivore
C. Breaks down dead organisms
4. Decomposer
D. Makes its own food using sunlight
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1 = Makes its own food using sunlight; 2 = Eats only plants; 3 = Eats other animals; 4 = Breaks down dead organisms

Matching terms to their roles helps understand food chains.
10.
Give three examples of producers in a food chain. (Enumeration)
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Grass, Algae, Trees

These are common producers that make food through photosynthesis.