Try to plan how to keep as much sediment on your hill. Work with your team to cover the hills with sand, then gravel. Each hill should be made out of two sticks of modeling clay.
Procedure Work with your team to create two clay hills. Materials 4 bars of modeling clay – two for each “hill.” Two tin baking pans 1 cup of sand ½ cup of gravel 2 cups of water, one for each rain storm/hill 1 solo cup with 6 small holes punched in the bottom Do you think the hill with the steeper slope will have more erosion? Or will the hill with the less steep slope have more erosion? Hypothesis Use what you already know about gravity and forces. Finally, you will observe and, if necessary, measure to see which “rainstorm” deposited the most soil at the bottom of the hill.Then, you will use a cup with the same amount of holes punched in the bottom (controls) that are the same size (controls) to drizzle water over the soil on the hills to simulate rain.The only difference will be the incline (slope/steepness) of the two hills, one will be steeper than the other (variable).īackground Information/Discussion (part 2).You will cover the clay with the same amount of sand and gravel, trying to make them look exactly the same.
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