Melissa Breisch, Emily Kelly, and Tyler Sarkis. What is erosion? Describe to your neighbor what erosion is.

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Presentation transcript:

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 Cups Sand Water, plastic chips, or pebbles

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.

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.

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?

Different Types of Erosion Wind Erosion Water Erosion Glacier Erosion Soil Erosion Sea Erosion

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

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

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

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

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

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

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.

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

How we effect erosion How do you think we effect erosion?