Landforms

2. rock that forms when sediments are pressed together
4. material made of very small grains of minerals
9. a large flat area of land at the mouth of a river formed by the deposition of sediments
13. process by which exposed rock is broken down by rain, frost, wind or other elements of weather
14. the process by which dead plants and animals decay or rot
15. fuels formed over millions of years from the remains of ancient plants and animals; examples include coal, petroleum and natural gas
16. the remains of a plant or animal that lived long ago
20. process of binding and hardening of sediments into hard rock
21. mountain made from hardened lava, rocks, and ash that erupted from underneath the earth[s surface
22. process by which overlying pressure from rocks and soil reduces the size or volume of sediments

1. the size of soil particles
3. a huge piece of ice that slowly moves across the surface of the earth and remains frozen during the entire year
5. the process by which weathered and eroded material is deposited by wind, water, and ice
6. a hill of sand formed by the deposition of sand by the wind
7. the shaking of the earth’s crust caused by large pieces of rock underneath the earth's surface moving against each other
8. the high walls along a river and the river itself
10. decaying plant and animal material in the soil
11. the movement of weathered particles by water, wind, or ice
12. the process by which materials that have been eroded are dropped in a new place
17. soil rich in nutrients that is good for plant growth
18. occurs when gravity pulls down some of the land on the slope of a hill
19. a material made up of tiny pieces of weathered rock