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Science at key stage 3    (Year 8)

Unit 8D: Ecological relationships
Section 11: How do plants, animals and environmental conditions interact in a habitat? d) How big are the populations in the habitat? (1)

QCA

Objectives
Children should learn:
  • how to use quadrat sampling techniques to collect information about populations of organisms
  • how to record data in appropriate ways

Activities

Outcomes
Children:
  • Remind pupils about quadrat sampling and help them to collect quantitative data about number and distribution of organisms, eg count and find out about distribution of weeds on a school field, limpets on a rocky shore or earthworms in the soil; estimate percentage cover of different plant types in different habitats or in different areas of a habitat, such as along a transect. Arrange for pupils to collect comparative information from two habitats, or different parts of a habitat for which environmental data has also been collected.
  • collect information about the number and distribution of organisms in a quadrat sample
  • use sample data to estimate a population
  • record data in appropriate ways

Sections in this unit

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This unit is divided into sections. Each section contains a sequence of activities with related objectives and outcomes. You can view this unit by moving through the sections or print/download the whole unit.
1. How can animals be classified? (1)
2. How can animals be classified? (2)
3. How can green plants be classified?
4. How do plants, animals and environmental conditions interact in a habitat? a) How can we collect data to answer questions about a habitat? (1)
5. How do plants, animals and environmental conditions interact in a habitat? a) How can we collect data to answer questions about a habitat? (2)
6. How do plants, animals and environmental conditions interact in a habitat? b) What lives there? (1)
7. How do plants, animals and environmental conditions interact in a habitat? b) What lives there? (2)
8. How do plants, animals and environmental conditions interact in a habitat? c) Why do the communities differ in different habitats? (1)
9. How do plants, animals and environmental conditions interact in a habitat? c) Why do the communities differ in different habitats (2)
10. How do plants, animals and environmental conditions interact in a habitat? c) Why do the communities differ in different habitats? (3)
11. How do plants, animals and environmental conditions interact in a habitat? d) How big are the populations in the habitat? (1)
12. How do plants, animals and environmental conditions interact in a habitat? d) How big are the populations in the habitat? (2)
13. How do living things in a community depend on each other? (1)
14. How do living things in a community depend on each other? (2)
15. Reviewing work