1. 3.1 THE ROCK CYCLE SHOWS HOW ROCKS CHANGE

2. Vocabulary  ROCK A naturally formed solid that is usually made up of one or more types of minerals  ROCK CYCLE The set of natural processes that form, change, break down and re- form rocks

3. Most Rocks are made of Minerals = = Crystal structure

4. Most Rocks are made of Minerals  Rocks are made of different amounts of minerals calcite No Minerals LIMESTONE OBSIDIAN No Minerals COAL

5. Our World is Built of Rocks  Earth is built almost entirely of rocks  What do you see when you look at the Earth’s surface?  Solid and Molten Rock (between crust and metallic core)

6. Rocks are used for: Buildings (houses & skyscrapers)

7. Rocks are used for: Sources of Metal (Fe, Al, Cu)

8. Rocks are used for: Statues and Other Art

9. Rocks are used for: Base for Pavement (Roads and Highways)

10. Rocks in the World Around Us Limestone Granite

11. Rocks Change as they Move Through the Rock Cycle  Rock Cycle=no beginning or end (continuous) http://www.neok12.com/php/watch.php?v=zX616a577c597f7c784c720a&t=Types-of-Rocks http://www.bbc.co.uk/schools/ks3bitesize/science/environment_earth_universe/rock_cycle/activity.shtml

12. Rock Types: Igneous Rock  Forms when molten rock cools to a solid  On Earth’s surface or within

13. Rock Types: Sedimentary Rocks  Forms when pieces of rock, plants, or other loose materials get together  Carried by or

14. Rock Types: Metamorphic Rocks  Forms fromor pressure  Eventually raised to the surface

15. Rocks in the Crust  95% metamorphic and igneous  5% sedimentary

16. More on the Rock Cycle  ROCK CYCLE TEST ROCK CYCLE TEST http://www.neok12.com/diagram/Types-of-Rocks-01.htm  Rock Cycle http://www.classzone.com/books/earth_science/terc /content/investigations/es0602/es0602page02.cfm http://www.classzone.com/books/earth_science/terc /content/investigations/es0602/es0602page02.cfm