Mrs. strunk's earth science class used an erosion model to investigate the relationship between the slope of a hill, or incline, and the amount of soil that washes off of the incline. the class increased the slope of the incline from 1 to 5. then, they poured 100 ml of water down the incline. finally, they collected the soil from a tray at the bottom of the incline, dried the soil in an oven, and used a balance to find the mass of the soil. the data from their study is shown below. based on the graph, more soil is washed away when a. there are fewer rocks in the soil. b. the slope of the incline is less steep. c. the slope of the incline is steeper. d. the soil is made mostly of sand.
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Madison lives near the ocean. she’s formed a hypothesis that increased concentrations of salt in the air speeds the corrosion of certain metals. if madison plans to test this hypothesis, she will have to deal with the following variables in her experiment: dependent variable: independent variable: one possible confounding variable:
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Mrs. strunk's earth science class used an erosion model to investigate the relationship between the...
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