1. LETS TALK ROCK

2. TYPES of rocks
IGNEOUS
SEDIMENTARY
METAMORPHIC

3. IGNEOUS

4. Formed from melted rock
Three types of igneous rocks:
Diorite- large crystals
Andesite- small crystals
Pumice- blasts from top of volcano.

5. SEDIMENtary

6. Formed from layers of natural material
The Grand Canyon is mostly sedimentary.
Layers can repeat.

7. metamorphic

8. Formed by changing one type of solid rock into another.
This is known as metamorphism.

9. References
 Geiger, B. (2006). Rock Hound: Rocks tell Earth’s amazing story. National Geographic Explorer, 7-11.