Grade 7, Science Worksheet, Soil : worksheet 1
1. What happens when you heat a sample of dry soil in a test tube?
2. Which of the following contributes to soil erosion the most?
3. What happens to the air in soil when water is added?
4. The process by which bedrock is broken down to form soil over time is called:
5. What is the main cause of sand erosion in coastal areas?
6. Which component is NOT found in soil?
7. Which of the following strategies is NOT effective in preventing soil erosion?
8. What is the most suitable type of soil for plant growth?
9. What is soil erosion?
10. Which of the following is a benefit of microorganisms in soil?
11. Loamy soil is best for agriculture because it:
12. Which particle type is the smallest in size?
13. Roots of most plants are usually found in which layer of soil?
14. What is the term for the spaces in soil that retain air?
15. What is one main feature of sandy soil?
16. Soil profiles are important because they help in understanding:
17. Clay soil is primarily used for making:
18. Which soil organism is considered helpful for loosening soil?
19. Which of the following helps retain water in soil?
20. Humus in soil refers to:
21. What is the primary cause of soil erosion on agricultural land?
22. Which method is NOT used to prevent soil erosion?
23. Which of the following is abundant in sandy soil?
24. Which layer is at the bottom of a soil profile?
25. Which type of soil has the highest water retention capacity?
