Earth Science

3. imaginary line that circles earth halfway.
4. height above sea level
7. Top layer of organic material of soil
9. solid layer of rock beneath the soil
10. grinding away of rock by another rock
11. soil that is slippery when wet, not grainy or rocky
12. a landform made of sediment that is deposited where a river flows into an ocean or lake

1. large mass of moving ice and snow on land
2. soil organism that breaks down the remains of organisms and digests them
5. process by which water, ice, wind, or gravity moves weather rock and soil.
6. a weathering process that breaks down rock through chemical changes
8. - rich, fertile soil that is made up of about equal parts clay, sand, and silt
11. a soil which has a very high content of sand