Year 7 - Science
Predator-prey relationships
Ecosystems
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This pupil-friendly study guide includes a unit summary, clear notes, common mistakes, and quick questions with answers.
Unit Summary
This unit explores the interdependence of organisms in ecosystems, including food webs and insect-pollinated crops. It examines how organisms interact with their environment and the impact of toxic materials. It also highlights the importance of biodiversity and preserving genetic material.
Lesson Summary
You will learn to describe and explain the relationship between predator and prey populations.
Key Notes
- 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.
Vocabulary To Learn
- 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 Mistakes To Avoid
- The change in the size of a population will only affect another population if they are predator-prey
3 Quick Questions (With Answers)
1. Explain the scientific idea in this lesson using two key points.
Predators are hunters and prey are hunted. Different factors can affect the population sizes of predators and prey (e.g. disease).
2. Define this scientific word and use it in context. 'predator'
An animal that hunts and eats another animal. Include the word in a full scientific explanation, not as a single label.
3. Correct this common scientific misunderstanding.
Mistake: The change in the size of a population will only affect another population if they are predator-prey. Correction: Ensure that pupils are given opportunities to see how changes in population size impact all other organisms in the food chain.
More Lessons In This Unit
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