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Schemes of Work
QCA

Science at key stage 3    (Year 7)

Unit 7C: Environment and feeding relationships
Section 4: c. How do environments vary?

QCA

Objectives

Children should learn:
  • how some animals are adapted to seasonal changes in their habitats
  • that adaptations may be to avoid climatic stress

Activities

Outcomes

Children:
  • Provide pupils with overwintering structures or photographs or video clips of these as stimulus material, eg onion bulb, pupa, twig with buds, carrot, plastic bag of hair from a moulting pet. Ask pupils to suggest when they would normally be found and their function. Show videos of habitats at different times of the year and ask pupils to identify differences and describe the consequences of these for the organisms in the habitat. Ask pupils to describe from their own knowledge how plants in the school habitat change over the year and predict the likely effects of the changes on the animals in the locality.
  • Provide pupils with key words and phrases, eg migration, hibernation, overwintering of pupae, dormant structures, making food stores, thicker insulation, and ask pupils to use secondary sources to find out about these and how they help animals avoid climatic stress. Ask pupils to describe what they found out and help them to contribute to a summary sheet about seasonal changes.
  • identify ways in which habitats vary through the year
  • describe some strategies which plants and animals adopt to avoid climatic stress

Points to note

  • It may be useful to have data about temperature ranges and daylight hours in the locality of the school to support this work.
  • Some dormant twigs can be frozen successfully for use at other times of year. Ash trees are usually among the last to come into leaf.

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 does the environment influence the animals and plants living in a habitat?
2. a. How do environments vary?
3. b. How do environments vary?
4. c. How do environments vary?
5. Checking progress
6. a. What is a feeding relationship?
7. b. What is a feeding relationship?
8. a. What do food webs tell us?
9. b. What do food webs tell us?
10. c. What do food webs tell us?
11. Reviewing work