1. Mineral
A naturally formed, inorganic solid that has a definite structure and chemical composition

2. Inorganic
Matter that does not come from living things

3. Crystal
Solid material with atoms arranged in a repeating pattern

4. Streak
The color of a mineral in powdered form found by rubbing the mineral on an unglazed tile called a streak plate

5. Hardness
Ability of a mineral to resist being scratched

6. Luster
The way the surface of a mineral reflects light; either metallic or non- metallic, such as silky, dull, or glassy

7. Cleavage
Tendency of a mineral to break along a flat surface

8. Fracture
Tendency of a mineral to break into pieces with jagged or rough edges

9. Malleability
A property that describes the ability of the material to be rolled or hammered into thin sheets

10. Conductivity
A property that describes if heat or electrical charges pass through the material easily

11. #1 The answer is B. Write the question.
Color, shape, size, streak, hardness
Color, streak, hardness, luster
Color, streak, size, luster, hardness
Color, shape, streak, hardness, luster

12. #2 The answer is D. Write the question. Metamorphism
The cooling of magma and lava
Precipitating from solutions
All of the above

13. #3 The answer is D. Write the question.
Has a definite chemical composition
Is a solid
Is usually inorganic
All of the above

14. #4
Fill in the blank. The way light bounces off a mineral’s surface is described by the mineral’s ____________________.

15. #5
Answer the following question. How does defining and identifying physical properties of minerals help people use minerals?