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Schemes of Work
QCA

Science at key stage 3    (Year 8)

Unit 8G: Rocks and weathering

QCA
About this unit

In this unit pupils:

  • learn about rock texture as one of the key characteristics of different rock types
  • model rock texture
  • learn about the processes of weathering, erosion, transportation and sedimentation
  • relate processes, eg evaporation and dissolving, involved in rock formation to processes observed in other contexts
  • consider processes operating on different timescales

In scientific enquiry pupils:

  • consider how evidence from sedimentary layers and from fossils has led to changes in ideas about the development of the Earth
  • frame questions to be investigated
  • make qualitative observations, including using time-lapse photography to record gradual changes, evaluating methods used
  • present data in an appropriate way
  • use scientific knowledge and understanding to explain observations
  • investigate a question about sedimentation

This unit is expected to take approximately 7.5 hours.


Sections in this unit

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. What are rocks made of?
2. How does rain cause rocks to weather?
3. How do changes in temperature cause rocks to weather?
4. Checking progress
5. a. What happens to weathered pieces of rock?
6. b. What happens to weathered pieces of rock?
7. c. What happens to weathered pieces of rock?
8. Checking progress
9. a. Why do sediments form layers?
10. b. Why do sediments form layers?
11. Reviewing work