1. Shaping the Landscape
Weathering
Connections Pg 6-7
LO:
To know the four processes of weathering

2. What is weathering and how does it work?
To this… Why?
From this…..

3. A good example is letting a boiled
What is weathering?
Weathering is the breaking down or wearing away of minerals where they lie (in situ).
A good example is letting a boiled
sweet dissolve in your mouth without biting it.

4. Weathering produces some spectacular landscapes …
What is weathering?
Weathering produces some spectacular landscapes …

5. Generally, there are three main types of weathering
Freeze Thaw
Weathering
Chemical weathering
Biological weathering

6. Freeze thaw weathering
Keywords
Cracks in rock; freezes = water expands; thaws = water contracts; repeating = cracks breaking up, rock splits; forms scree

7. Freeze thaw weathering

8. Biological weathering
Key words
Plants or animals; seeds in cracks; moisture = roots grow;
widen cracks; rock falls apart and get into soil

9. Chemical
weathering

10. Limestone pavements are an excellent example
Chemical weathering
Keywords
Rainwater = v weak acid; acid attacks rock; rock rots
away/crumbles and enters soil; speeded up by heat; churchyards
Limestone pavements are an excellent example

11. Green book called “Geography” pg 101-102
Task One
Connections pg 7, Activities 1b-4
Task Two
Green book called “Geography” pg
Read pg 101
Do Activites 1 & 2 on pg 101 & 102
Copy Key words on pg 101

13. AYERS ROCK

15. Task Place the following phrases in the correct box to show the
process of biological weathering
Roots develop
Roots break up rock
Crack gives moisture
and shelter
Seeds blow into crack
Tree grows