KS2 Science Quiz - Food Webs (Questions)

This KS2 Science quiz is all about food webs. Food webs, also called food chains, show us how energy is transferred from one organism to another by eating, or consuming.

Food webs are cycles of what eats what. All living things, plants and animals, need energy in order to survive. Plants (like grass for example) create energy from sunlight by photosynthesis. This is then transferred to herbivores (like rabbits) which eat the plants. Predators (such as foxes) then eat the herbivores and the energy is transferred once more. These transfers of energy are what we call food chains.

What type of food do different organisms need and where do they find it? What type of food supports all life on Earth? What are the differences between producers and consumers. Test your knowledge of food chains and food webs with this quiz.

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

 

KS2 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