1. Ch. 3: Rocks ~Rocks change into other rocks over time~
3.1
THE ROCK CYCLE SHOWS HOW ROCKS CHANGE

2. Vocabulary ROCK ROCK CYCLE MINERALS
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
MINERALS
A substance that forms in nature, is a solid, has a definite chemical makeup, and has a crystal structure.

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
OBSIDIAN
COAL
LIMESTONE
No Minerals
No Minerals

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
Granite
Granite
Limestone
Rocks in the World Around Us

11. Rocks Change as they Move Through the Rock Cycle
Rock Cycle=no beginning or end (continuous)

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 from or pressure
Eventually raised to the surface

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

16. More on the Rock Cycle ROCK CYCLE TEST Rock Cycle
Rock Cycle