1.What percent of the Earth is made of minerals?

2.What are the five defining characteristics of all minerals?

3.What are crystals? How are they formed?

4.What is the most common mineral on Earth?

5.What are the two main ways that minerals are formed?

6. How do minerals differ from rocks?

7.What are the six properties used to identify minerals?

8.What was Friedrich Mohs' contribution in helping us to identify minerals?

9.Which is the hardest mineral? How is that substance used?

10. Describe the luster of talc versus diamond.

11. Describe a mineral's streak. Is the color of the streak always the same as the color of the mineral?

12. How have the colors of minerals been used throughout history?

13. If a mineral can float in water, what does that tell you about its density?

14.Where can minerals be found on the Earth?

15.Why can the oceans of the world be described as "a gigantic mineral soup"?

16.Where do humans get the minerals they need to keep their bodies healthy?

17.What are some common uses of minerals?

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