1. ROCKS

2. The Rock Cycle: through rain, freezing temperatures, wind, heat and pressure rocks change from one type to another.

3. A Process? Process? Weathering & erosion. A. Melting Process?
A. Compaction A
A. Sedimentary Rock

6. Three Types of Rocks:
1. Sedimentary, due to wind, rain, gravity and erosion.
2. Metamorphic, due to heat and pressure.
3. Igneous, due to melting, cooling and pressure.

7. THE ROCK CYCLE

8. Sedimentary Rocks
Form when sediments or lose materials such as sand and clay have been moved by wind, rain, ice or gravity.

9. Examples of Sedimentary Rocks:
1. Sand stone
2. Flag stone
3. Slate
4. Gypsum

10. Silicates are made of oxygen, O, and silicone, Si, and make up over 70% of the Earth’s Crust.

11. Elemental Percentages in Earth’s Crust

12. Quartz is made up of Si and O. It is a very common mineral
Quartz is made up of Si and O. It is a very common mineral. Other common rocks are feldspar, hornblende, and mica.
Once these minerals are formed do they stay the way forever or do they change over time?