Starter quiz
- A caterpillar eating a plant is an example of ...
- a producer eating a consumer.
- a consumer eating a producer. ✓
- a predator eating prey.
- prey eating a predator.
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- A blue tit eating a caterpillar is an example of ...
- a producer eating a consumer.
- a consumer eating a producer.
- a predator eating prey. ✓
- prey eating a predator.
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- Which living thing in this food chain is both a predator and prey?
- grass
- scrub hare
- baboon ✓
- cheetah
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- What is an environment?
- All the animals in the world.
- What the weather is like on Earth.
- The surroundings that an animal or plant lives in. ✓
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- The place where a plant or animal lives is called its ______.
- 'habitat' ✓
- What does it mean if a plant or animal has become extinct?
- There are too many of them on Earth.
- There are not many of them on Earth.
- There are no living ones left on Earth. ✓
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Exit quiz
- True or false? This food chain means that one cabbage is food for one greenfly, which is food for one ladybird.
- True
- False ✓
- Which statement is correct?
- A change to one living thing can affect other living things in a food chain. ✓
- A change to one living thing doesn't affect other living things in a food chain.
- A change to one living thing only affects the producer in a food chain.
- A change to one living thing only affects the consumers in a food chain.
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- True or false? A dramatic decrease in the population of a plant or animal can have a negative effect on the food chain.
- True ✓
- False
- True or false? A dramatic increase in the population of a plant or animal can have a negative effect on the food chain.
- True ✓
- False
- The population size of orangutans is becoming very small. How would we describe this population?
- extinct
- eroded
- protected
- endangered ✓
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- Changes in food chains may lead to animals and plants dying out completely and becoming ______.
- 'extinct' ✓
Worksheet
Presentation
Lesson Details
Key learning points
- The name or picture of each living thing in a food chain represents the whole population of that plant or animal.
- A change to one living thing can affect other living things in the same food chain.
- An increase or decrease in the population of a plant or animal can have an effect on the food chain.
- Changes in food chains may lead to animals and plants becoming endangered or even extinct.
Common misconception
Pupils often think that the words and pictures in a food chain represent an individual plant or animal rather than populations of living things within a habitat.
It is made explicit within the examples in this lesson that each living thing named in a food chain represents a population of that type, or species, of plant or animal within a habitat.
Keywords
Food chain - A food chain shows how living things depend on each other for food.
Population - The population is the total number of something living in a particular area in a particular period of time.
Habitat - The place where a plant or animal lives is called its habitat.
Extinct - Animals or plants that have died out completely are extinct.
Endangered - An endangered plant or animal is one that is at risk of becoming extinct.