1. Title: Weathering and Erosion
Welcome Year 8 Sit in your allocated seat, get out your equipment and write the title and date, and begin the starter.
Date: 30 November 2018
Title: Weathering and Erosion
Starter: 4 MINS
In your books:
Draw a spider diagram
Write everything you currently know about weathering and erosion around the spider diagram.

2. I will learn:
How different factors shape the earth around us.
ALL: State the difference between erosion and weathering.
I will apply my learning by:
MOST: Describe the different types of weathering.
Literacy Focus:
Reading and writing
Use Key words:
Weathering, erosion.
SOME: Analyse the effect of acid strength on
I will evaluate my learning by:
Identifying a type of weathering/erosion from its description.

3. What is weathering?
Weathering is the breakdown of rocks by physical and chemical processes. No transport is involved.
What is erosion?
Erosion is the movement of rocks by wind, moving water and ice (glaciers). These usually contain weathered rock debris. Rocks that fall under gravity also count as erosion.
Apply your learning: FULL SENTENCES 4 MINS
Using the descriptions above answer the following question:
Describe the difference between weathering and erosion?
EXTENSION: List as many types of
weathering/erosion as you can think of.

4. Discuss the following questions with the person next to you:
What would happen if I left a full bottle of water in the freezer over night? WHY?
What would happen if you sprayed a light bulb with cold water? WHY?
Why am I asking you these questions?

5. Different types of weathering
Teacher demonstration:
Different types of weathering
Onion skin weathering

6. Different types of weathering
Teacher demonstration:
Different types of weathering
Acid Rain

7. Different types of weathering
Root growth

8. Different types of weathering
Freeze Thaw

9. Describe the different types of weathering
Apply your learning
Onion skin
Acid Rain
Root growth
Freeze Thaw
Describe the different types of weathering
Write a short description of each type of weathering
Include a diagram
EXTENSION:
Explain how would the “strength” (pH) of the acid rain would affect the rate of weathering.

10. Evaluating today’s learning
Turn to the back of your books.
Listen to my description of a type of weathering.
Write the name of the type of erosion.
Swap your book with the person next to you, and mark their answers.
Write there score out of 4 next to their answers.