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Science Quiz - Food Webs (Questions)

Food chains and food webs show how energy flows between living things. Producers, consumers, and predators all connect to keep ecosystems balanced.

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Fascinating Fact:

Every food web begins with plants, because they are the producers that make their own food using sunlight.

In KS2 Science, students learn how food chains and food webs describe feeding relationships in ecosystems. They show how energy passes from producers to herbivores, carnivores, and decomposers.

Key Terms

Producer: A living thing, like a plant, that makes its own food using sunlight.
Consumer: An animal that eats plants or other animals to get energy.
Food Web: A network of connected food chains showing how energy flows in an ecosystem.

Frequently Asked Questions (Click to see answers)

What is a food chain in science?

A food chain shows how energy is passed from one living thing to another, starting with a plant and ending with animals at the top.

What is the difference between a food chain and a food web?

A food chain is a single path of energy flow, while a food web links many food chains together to show how organisms are connected.

Why are plants important in food chains?

Plants are important because they are producers. They make their own food using sunlight and start the flow of energy in every food chain.

Try These Related Quizzes

1.

In a food web, green plants are known as producers. Why is this?

[ ]	Because plants are not carnivores
[ ]	Because plants are the most efficient at transferring energy
[ ]	Because plants create their own food from sunlight
[ ]	Because plants are inefficient at transferring energy

2.

Which of the following support all life on Earth?

[ ]	Insects
[ ]	Mammals
[ ]	Carnivores
[ ]	Green plants

3.

Which consumers eat only plants?

[ ]	Herbivores
[ ]	Omnivores
[ ]	Carnivores
[ ]	Other plants

4.

What is an omnivore?

[ ]	An omnivore eats only green plants
[ ]	An omnivore is a top carnivore
[ ]	An omnivore eats both plants and animals
[ ]	An omnivore is a decomposer

5.

What must be at the beginning of every food chain?

[ ]	A herbivore
[ ]	A green plant
[ ]	A decomposer
[ ]	An omnivore

6.

Which of these food chains is in the right order?

[ ]	Shrimp → algae → cod → seal → polar bear
[ ]	Algae → cod → shrimp → seal → polar bear
[ ]	Polar bear → seal → cod → shrimp → algae
[ ]	Algae → shrimp → cod → seal → polar bear

7.

Which of these species is a producer?

[ ]	Polar bear
[ ]	Algae
[ ]	Shrimp
[ ]	Cod

8.

What does a decomposer do in a food web?

[ ]	They provide food for herbivores
[ ]	They recycle nutrients by feeding on dead and decaying materials
[ ]	They convert energy from sunlight into food
[ ]	They create soil

9.

In a food web, secondary consumers eat the primary consumers, or herbivores. Which one of these is a secondary consumer?

[ ]	Fox
[ ]	Caterpillar
[ ]	Rabbit
[ ]	Cow

10.

Rose → aphid → ladybird. In this food chain, what is the ladybird?

[ ]	The producer
[ ]	A decomposer
[ ]	The secondary consumer
[ ]	The primary consumer

You can find more about this topic by visiting BBC Bitesize - What is a food chain?

Science Quiz - Food Webs (Answers)

1.

In a food web, green plants are known as producers. Why is this?

[ ]	Because plants are not carnivores
[ ]	Because plants are the most efficient at transferring energy
[x]	Because plants create their own food from sunlight
[ ]	Because plants are inefficient at transferring energy

Plants use photosynthesis to convert sunlight into food

2.

Which of the following support all life on Earth?

[ ]	Insects
[ ]	Mammals
[ ]	Carnivores
[x]	Green plants

Because plants create their own food from sunlight, using photosynthesis, they are the only means of transferring energy from the Sun to all life on Earth

3.

Which consumers eat only plants?

[x]	Herbivores
[ ]	Omnivores
[ ]	Carnivores
[ ]	Other plants

Herbivores are called primary consumers because they are able to gain all their energy through digesting plants

4.

What is an omnivore?

[ ]	An omnivore eats only green plants
[ ]	An omnivore is a top carnivore
[x]	An omnivore eats both plants and animals
[ ]	An omnivore is a decomposer

Humans are omnivores

5.

What must be at the beginning of every food chain?

[ ]	A herbivore
[x]	A green plant
[ ]	A decomposer
[ ]	An omnivore

Plants always come at the beginning of a food chain, which is why they are known as producers - only plants can turn sunlight into food

6.

Which of these food chains is in the right order?

[ ]	Shrimp → algae → cod → seal → polar bear
[ ]	Algae → cod → shrimp → seal → polar bear
[ ]	Polar bear → seal → cod → shrimp → algae
[x]	Algae → shrimp → cod → seal → polar bear

Arrows show the way in which energy is moving

7.

Which of these species is a producer?

[ ]	Polar bear
[x]	Algae
[ ]	Shrimp
[ ]	Cod

Producers are always green plants

8.

What does a decomposer do in a food web?

[ ]	They provide food for herbivores
[x]	They recycle nutrients by feeding on dead and decaying materials
[ ]	They convert energy from sunlight into food
[ ]	They create soil

Decomposers include earthworms, woodlice, fungi and bacteria, and represent the end of any food web because they feed on dead organisms

9.

In a food web, secondary consumers eat the primary consumers, or herbivores. Which one of these is a secondary consumer?

[x]	Fox
[ ]	Caterpillar
[ ]	Rabbit
[ ]	Cow

Caterpillars, rabbits and cows are all herbivores and so primary consumers

10.

Rose → aphid → ladybird. In this food chain, what is the ladybird?

[ ]	The producer
[ ]	A decomposer
[x]	The secondary consumer
[ ]	The primary consumer

The rose is the producer, the aphid is the primary consumer and the ladybird is the secondary consumer