Therefore, use plants that are somewhat drought tolerant. These types of areas can be dry due to water traveling downwards and The maximum slope for hillside landscaping should be 3:1. Visit my page on xeriscape plants to see what I did! Hillside Landscaping Observe the amount of sediment at the bottom of each hill after the storms.This is the same slope in the fall at a later time. Use the solo cup with the holes punched in the bottom to “rain” one cup of water on the first hill, then the second hill. 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.
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