- Year 7
Predator-prey relationships
I can describe and explain the relationship between predator and prey populations.
- Year 7
Predator-prey relationships
I can describe and explain the relationship between predator and prey populations.
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Lesson details
Key learning points
- Predators are hunters and prey are hunted.
- Different factors can affect the population sizes of predators and prey (e.g. disease).
- There is a relationship between the predator and prey population sizes, each is impacted by changes in the other.
Keywords
Predator - An animal that hunts and eats another animal.
Prey - An animal that is caught and eaten by another animal.
Population - A group of organisms of the same type, in the same place, is called a population.
Common misconception
The change in the size of a population will only affect another population if they are predator-prey
Ensure that pupils are given opportunities to see how changes in population size impact all other organisms in the food chain.
To help you plan your year 7 science lesson on: Predator-prey relationships, download all teaching resources for free and adapt to suit your pupils' needs...
To help you plan your year 7 science lesson on: Predator-prey relationships, download all teaching resources for free and adapt to suit your pupils' needs.
The starter quiz will activate and check your pupils' prior knowledge, with versions available both with and without answers in PDF format.
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The assessment exit quiz will test your pupils' understanding of the key learning points.
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Explore more key stage 3 science lessons from the Ecosystems unit, dive into the full secondary science curriculum, or learn more about lesson planning.
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Prior knowledge starter quiz
6 Questions
Q1.In a food chain diagram, animals can be:
Q2.A food chain diagram is an example of a . These help us to understand difficult things more simply.
Q3.Look at the food chain diagram. It shows four organisms. Match the organism with the word that describes its position in the food chain.
producer
primary consumer
secondary consumer
tertiary consumer
Q4.What is wrong with this food chain?
Q5.What is wrong with this food chain?
Q6.Look at the picture of this food chain diagram. Choose the correct statement.
Assessment exit quiz
6 Questions
Q1.A is the number of organisms of one type that lives in a given area.
Q2.Births, deaths and migration can all impact the size of a population. Match the words with how they are most likely to change the size of a population.
increase the size of a population
decrease the size of a population
can increase or decrease the size of a population
Q3.In this food chain diagram, which organism is the predator of the cod?
Q4.The graph shows the size of a population of rabbits. Which of the following is most likely to explain the shape of the graph?
Q5.Which graph represents a predator-prey model?
