Food Webs
Rose → aphid → ladybird. In this food chain, the ladybird is the secondary consumer.

Food Webs

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.

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  1. In a food web, green plants are known as producers. Why is this?
    Plants use photosynthesis to convert sunlight into food
  2. Which of these food chains is in the right order?
    Remember: ' → ' means 'eaten by'
  3. What does a decomposer do in a food web?
    Decomposers include earthworms, woodlice, fungi and bacteria, and represent the end of any food web because they feed on dead organisms
  4. Which of the following support all life on Earth?
    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
  5. Which of these species is a producer?
    Producers are always green plants
  6. Rose → aphid → ladybird. In this food chain, what is the ladybird?
    The rose is the producer, the aphid is the primary consumer and the ladybird is the secondary consumer
  7. Which consumers eat only plants?
    Herbivores are called primary consumers because they are able to gain all their energy through digesting plants
  8. What is an omnivore?
    Humans are omnivores
  9. In a food web, secondary consumers eat the primary consumers, or herbivores. Which one of these is a secondary consumer?
    Caterpillars, rabbits and cows are all herbivores and so primary consumers
  10. What must be at the beginning of every food chain?
    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

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