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Surface Forces that shape the Earth R161,54
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Surface Forces that shape the Earth

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PowerPoint Presentation for Grade 9 CAPS Surface Forces that shape the Earth

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  • September 21, 2022
  • 27
  • 2017/2018
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karlwhitlock
Module 5
Surface forces that
shape the Earth
Created by Mr K Whitlock
2020

,Content
• Unit 1 Weathering
• Unit 2 Erosion and deposition
• Unit 3 The impact of people in soil erosion

, Unit 1 Weathering

• Concept of Weathering
– The Earth’s crust is made up of solid rock, which slowly break into
smaller pieces, this is known as weathering
– Weathering is an important process as it provides particles of rock,
which eventually form soil
– Rocks are made of minerals which, in soil, provide nutrients for plants
– These plants are then eaten by animals and humans, which pass
these nutrients on
• Rocks weather in three different ways
1. Physical Weathering
2. Chemical Weathering
3. Biological Weathering

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