004 - Weathering and Erosion

Significant Concept

To understand how weathering and erosion helps to shape the landscape.

Key Terminology

• Weathering
• Erosion
• Chemical Weathering
• Physical Weathering
• Biological Weathering
• Freeze-Thaw
• Onion-skin
• Hydraulic Action
• Attrition
• Corrosion
• Corrasion/Abrasion
• Transportation
• Deposition

Activity One - Weathering

1. Define the words weathering and erosion using either the internet, dictionary or page 76 ad 78 of the 'Geog 1' text book.
2. Watch the clip and make notes (with diagrams) in the table on how weathering and erosion occurs. The resources below will also help you to fill in the table.

1. You will be divided in to four groups. Each group will be asked to complete a short role play to show how the different elements of weathering can occur.
2. As each group presents add more detail to the notes written from the clip.

Resources

• Weathering and erosion
• Weathering - National Geographic
• 'Geog 1' text book page 76

Activity Two - Erosion

Answer the following questions using the 'Geog 1' text book page 78.

1. What is abrasion?
2. Describe the process of attrition.
3. How does hydraulic action occur?
4. What is corrosion? (reading about solution will help with this question)

Activity Three - Transportation

1. Define the word transportation.
2. Copy the diagram below and annotate it to show the different ways that a river can transport its material.

Resources

• River Transportation
• 'Geog 1' text book page 78

Activity Four - Deposition

1. What is deposition?
2. How does deposition occur?

Resources

• Deposition - Think Quest
• 'Geog 1' text book page 79