INTERPRETING OBSERVATIONS Read the following paragraph , and answer the questions below. Students noticed that, since the time that grass began to grow on a barren hillside, less soil and water seemed to wash down the slope into the school yard during a rainstorm. The students thought that the grass helped hold the soil in place on the slope. The students predicted that more soil would wash down a slope without grass than a slope covered with grass. To find out if they were correct, the students conducted an experiment with three identical rectangular pans of soil In pan 1, they planted grass seed and allowed it to grow to several centimeters tall The students filled pan 2 with only soil. Then they took pan 1 and pan 2, and propped up at one end of each pan 15 cm high to create a slope. Pan 3 also filled with only soil , was propped up at one end 5 cm at one end to create a slope. Students poured equal amounts of water on the raised end of each pan and the students recorded their observations. 9. What hypothesis did the students test in their experiment? 10. What prediction did the students use to test their hypothesis? 11. Which steps in the experimental method are missing from the description above? 12 conduct a good experiment?Explain your answer

Question

INTERPRETING OBSERVATIONS Read the following paragraph , and answer the questions below. Students noticed that, since the time that grass began to grow on a barren hillside, less soil and water seemed to wash down the slope into the school yard during a rainstorm. The students thought that the grass helped hold the soil in place on the slope. The students predicted that more soil would wash down a slope without grass than a slope covered with grass. To find out if they were correct, the students conducted an experiment with three identical rectangular pans of soil In pan 1, they planted grass seed and allowed it to grow to several centimeters tall The students filled pan 2 with only soil. Then they took pan 1 and pan 2, and propped up at one end of each pan 15 cm high to create a slope. Pan 3 also filled with only soil , was propped up at one end 5 cm at one end to create a slope. Students poured equal amounts of water on the raised end of each pan and the students recorded their observations. 9. What hypothesis did the students test in their experiment? 10. What prediction did the students use to test their hypothesis? 11. Which steps in the experimental method are missing from the description above? 12 conduct a good experiment?Explain your answer

Answer 1

9. The hypothesis the students tested was: "Grass helps hold the soil in place on a slope, reducing soil erosion."10. The prediction the students used to test their hypothesis was: "More soil will wash down a slope without grass than a slope covered with grass."11. The steps missing from the experimental method description include:- A control for variables such as the amount of water and soil type.- Repetition of the experiment to ensure reliability.- Detailed recording of quantitative data.12. To conduct a good experiment, the students should ensure fairness by:- Using identical amounts of soil and water for each pan.- Repeating the experiment multiple times to verify results.- Controlling other variables that might affect soil erosion, such as soil type and water flow rate. This ensures that the observed differences are due to the presence or absence of grass.

Answer 2

The students' hypothesis, prediction, and experimental method can be deduced from the description. Missing steps in the experimental method and the fairness of the experiment can be assessed based on standard scientific procedures.

Question

Answer

Answer

Explanation