1. Seven physical properties one can use to identify an unknown mineral. Which one is most useful in discriminating between minerals that look similar? Why?

2. Define a mineral

3. What is the difference between an atom and an ion?

4. Name two types of chemical bonds.

5. Name three classes of minerals other than silicates.

6. What are the differences between extrusive and intrusive igneous rocks?

7. What are the differences between regional and contact metamorphism?

8. Name a common silicate mineral found in each of the three families of rocks:igneous, sedimentary and metamorphic.

9. Of the three families of rocks, which form at Earth's surface and which in Earth's interior?

Book- Understanding Earth seventh edition