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Erosion

Erosion. Melissa Breisch , Emily Kelly, and Tyler Sarkis. What is erosion?. Describe to your neighbor what erosion is. Definition. Erosion is the process by which the surface of the Earth gets worn down. . Please get into groups of 2-3 Make sure you have all the supplies for your group

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Erosion

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  1. Erosion Melissa Breisch, Emily Kelly, and Tyler Sarkis

  2. What is erosion? • Describe to your neighbor what erosion is.

  3. Definition • Erosion is the process by which the surface of the Earth gets worn down.

  4. Please get into groups of 2-3 • Make sure you have all the supplies for your group • Cups • Sand • Water, plastic chips, or pebbles

  5. Pile your sand into the open end of the cup. • Blow lightly from the open end of the cup on the sand. • Record your observations.

  6. Pile the sand again. • This time place either the water, plastic chips, or pebbles on top of your sand to prevent it from moving. • Again, blow lightly from the open end of the cup onto the sand. • Record your observation.

  7. What happened to the sand as you blew over it the first time? • What was the effect after you added these material and blew? • What material seems to be the most effective? • What material seems to be the least effective? • Does anyone know any examples of this in nature? Do you know what this is called?

  8. Different Types of Erosion • Wind Erosion • Water Erosion • Glacier Erosion • Soil Erosion • Sea Erosion

  9. Wind Erosion • Detachment, transportation, and deposit of loose soil or sand by the action of wind.

  10. Water Erosion • The chemicals in water will break down rocks along the side of a river and carried downstream.

  11. Glacier Erosion • Large pieces of ice, known as glaciers, pick up large pieces of rock, water, and ice and displace them.

  12. Sea Erosion • Waves crash along the shore dragging rocks and sand into the ocean.

  13. Soil Erosion • Flooding and wind can remove a layer of soil from the ground.

  14. Our Experiment • What type of erosion did we perform in our experiment? • What are types of this in our world?

  15. Sahara Desert • The landscape is formed by powerful winds (as seen in our experiment when blowing the sand). • Winds will reach 100 kilometers per hour, which is about as fast as a car driving the speed limit on the high way. • It will carry the sand long distances.

  16. The Dust Bowl • During the 1930’s, lasted about a decade. • Tons of top soil were taken off fields, and carried in huge storm clouds for hundreds of miles. • Occurred in Colorado, Kansas, Oklahoma, and Texas

  17. How we effect erosion • How do you think we effect erosion?

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