Science: Food Chains and Food Webs Worksheet

Question 1

A simple food chain is grass -> rabbit -> fox. Which living thing is the producer, and how do you know?

Accepted Answer

The grass is the producer because it makes its own food using sunlight.

Question 2

In the food chain leaves -> caterpillar -> bird, what does the caterpillar eat?

Accepted Answer

The caterpillar eats the leaves in this food chain.

Question 3

In the food chain corn -> mouse -> owl, which animal is the predator of the mouse?

Accepted Answer

The owl is the predator of the mouse because it hunts and eats the mouse.

Question 4

What is the main source of energy for most food chains on Earth?

Accepted Answer

The Sun is the main source of energy for most food chains on Earth.

Question 5

A deer eats grass. A wolf eats the deer. Write this food chain in the correct order using arrows.

Accepted Answer

The food chain is grass -> deer -> wolf because energy moves from the grass to the deer and then to the wolf.

Question 6

Look at this food chain: berries -> bird -> snake. Is the bird a consumer? Explain your answer.

Accepted Answer

The bird is a consumer because it gets energy by eating berries instead of making its own food.

Question 7

A cow eats grass. Is the cow an herbivore, carnivore, or omnivore?

Accepted Answer

The cow is an herbivore because it eats plants.

Question 8

A bear eats berries, fish, and insects. Is the bear an herbivore, carnivore, or omnivore?

Accepted Answer

The bear is an omnivore because it eats both plants and animals.

Question 9

In a pond food chain, algae -> small fish -> heron, what might happen to the heron if there are far fewer small fish?

Accepted Answer

The heron might have less food to eat, so it may need to find another place to hunt or another food source.

Question 10

True or false: The arrows in a food chain point from the eater to the food it eats. Explain your answer.

Accepted Answer

This is false. The arrows point from the food to the eater because they show the direction energy moves.

Question 11

A food web shows grass being eaten by rabbits, grasshoppers, and deer. What does this tell you about grass?

Accepted Answer

This tells us that grass is an important producer that gives energy to many different consumers.

Question 12

In a food web, a snake eats mice and frogs. An owl eats snakes and mice. Name one food chain from this food web.

Accepted Answer

One possible food chain is mouse -> snake -> owl. Another possible food chain is mouse -> owl.

Question 13

A grasshopper eats grass. A frog eats the grasshopper. A snake eats the frog. Which animal is prey for the frog?

Accepted Answer

The grasshopper is prey for the frog because the frog eats the grasshopper.

Question 14

Why are plants important in many food chains?

Accepted Answer

Plants are important because they are producers that make food using sunlight and provide energy for animals.

Question 15

Look at the food web: grass -> rabbit, grass -> grasshopper, grasshopper -> frog, rabbit -> fox, frog -> fox. Which animal eats both rabbits and frogs?

Accepted Answer

The fox eats both rabbits and frogs in this food web.

Science: Food Chains and Food Webs

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