1. Essential Question: What is the composition of rocks and how are they formed?
Standards:
S6E5b. Investigate the contribution of minerals to rock composition.
S6E5c. Classify rocks by their process of formation.
S6E5d. Describe processes that change rocks and the surface of the earth.

2. Composition of Rocks Minerals
Rock fragments (smaller pieces of other rocks)
Organic matter (remains of organisms and their wastes)
Other natural materials

3. Metamorphic Rock

4. Metamorphic Rock forms when a rock is changed by heat and or pressure

5. Depending on the amount of pressure and temperature applied, one type of rock can change into several different metamorphic rocks.

6. Metamorphic
Rocks

7. Metamorphic
Rocks

8. Increasing Heat and Temperature
Basalt
Greenstone
Schist
Increasing Heat and Temperature

9. Examples of Metamorphic Rock
Gneiss
Schist
Slate
Marble

10. Animation of Metamorphic Rocks Forming