Rocks and Weathering Lessons

Erosion-Deposition cycle

ALEF 144

by the end of the class, i can:

• Investigate erosion agents

• Describe the factors leading to sedimentation

• Predict the relationship between erosion and sedimentation

Open Ended

On extremely windy days, you can observe sand whipping through the air. Do you think the sand particles go back to where they came from?

Multiple Choice

Erosion means..........................................................

• the process by which soil and rock particles are worn away and moved elsewhere

• the dropping of sediments and other eroded materials in a new location

• the process that breaks down and changes rocks physically or chemically

Multiple Choice

deposition means..........................................................

• the process by which soil and rock particles are worn away and moved elsewhere

• the dropping of sediments and other eroded materials in a new location

• the process that breaks down and changes rocks physically or chemically

Explore: The agents of erosion and deposition are the same.

• log into ALEF 144

• Q1: What are the factors affecting erosion and deposition

• Q2: Describe each factor

• share your answers in the chat in ONE comment

Multiple Select

Which of the following are factors affecting erosion and deposition?

• Water

• Ice

• heat

• Wind

• Worms

Multiple Choice

Glaciers deposit sediment to form.............

• lava flows

• moraines

• sand dunes

Note: Each factor forms a different thing

Water > Flood plains

Ice [Glaciers] > Moraines

Wind > Sand dunes

Multiple Choice

If erosion doesn't happen, what would happen to the sediments after weathering?

• the sediment will settle down at the bottom of oceans and rivers

• the sediment will remain in their original locations [mountains]

• New mountains will be formed due to tectonic activity

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