Rocks, Weathering & Erosion

2. A Type of weathering that involves plants and animals effect on the landscape and rocks.
4. When materials are deposited into a new spot
6. The part of the earths crust is thickest here
7. The process of moving broken down rock by wind, water and gravity
12. Igneous rocks that cool more quickly above the earths crust
14. Occurs when water enters small cracks in rocks. The water then freezes and expands, and then ice thaws. This creates pressure and force on surrounding rock, causing cracks.
15. A type of weathering that involves chemicals in the air reacting with chemicals in rocks
16. Solid ball of Iron and Nickle
18. A type of weathering that is caused by non-living things
19. Molten Liquid ball of Iron and Nickle
20. The thinner part of the earths crust
22. The outer part of the earth, consisting of the crust and upper mantle
23. The section of the earth that makes up approximately 84% of the earths volume
24. The process of breaking down rock into smaller pieces

1. A piece of rock broken off another rock
3. Once magma is on the earths surface, it is known as this
5. These types of rocks are formed from the cooling of magma or lava
8. Igneous rocks that form slowly beneath the earths crust
9. Formed from High Pressure and/or Heat
10. Type of Rocks formed from sediments
11. These cover approximately 70% of the earths crust
13. A form of Sedimentary rock formed from Sand
17. A model that describes the formation, breakdown and reformation of a rock as a results of sedimentary, Igenous and metamorphic processes
21. Thin, top-layer of earth
23. red-hot molten rock under the surface of the earth