Changing Earth’s SurfaceStations

Station 1: Wind Erosion and Sand Dunes1. Place about 1 cup of sand in the

middle of a paper plate.2. Students near the plate need to be

wearing goggles.3. Record a “before” picture (technical

drawing).4. With a straw, blow gently at the sand

on the plate.5. Record an “after” picture (technical

drawing).6. Answer the questions for Station 1.7. Write a notebook entry starting with

“Wind affects the surface of Earth by….”

Station 2: Moving Ice: Exploring Melting Glaciers1. Make a model of the Earth’s

surface by using a paper plate with modeling clay on top.

2. Record a “before” picture (technical drawing).

3. Take a clean “glacier” (ice cube).

4. Using a paper towel to hold the ice, push the “glacier” over the “Earth”.5. Notice the glacial lakes. Glacial lakes usually are found at high altitudes.6. Dip the ice cube in a gravel/sand mixture.7. Run the dirty ice cube across the “Earth”.8. Notice the “boulders and rock material” is deposited on the land.9. Notice the marks made on “Earth” as the

“Glacier” moves across it.10. Record an “after” picture (technical

drawing).11. Answer the question for Station 2.12. Write a notebook entry starting with the

words “Glaciers affect the surface of Earth by….”

Station 3: Moving Ice: Exploring Erosion and Deposition by Glaciers

1. In the stream table, make a model of the Earth’s surface with mountains and a valley using sand and gravel.

2. Record a “before” picture (technical drawing).

3. Take a clean “glacier” (piece of ice).

4. Using a paper towel to hold the ice, push the “glacier” over the “Earth” and between the mountains.

5. Notice what happens to the V-shaped valley as the glacier moves down and through the valley.

6. Record an “after” picture (technical drawing).

7. Answer the questions for Station 38. Write a notebook entry starting with

the words “A glacier changes the Earth’s surface by….”