Unit 6 Rocks and Minerals study guide
18. What is the softest rating for a mineral? The hardest?
1, 10
6. Material made up of one or more minerals is called .
a rock
12. What is table salt which can flavor and preserve foods?
halite
1. A mineral's ability to resist being scratched in called its .
hardness
20. What mineral is used to make iron because it is very hard?
hematite
7. Rock that forms when melted rock hardens is called .
igneous
21. When a mineral reflects light, it is called .
luster
11. What is molten rock from the Earth's mantle?
magma
10. What is a black magnetic material?
magnetite
3. A rock that has been changed by high heat and great pressure is .
metamorphic
Marble
metamorphic
Slate
metamorphic
2. A natural solid that has its particles arranged in a crystal pattern is called a .
mineral
9. What form when rock pieces deposited over time are squeezed or stuck together?
sedimentary
Conglomerate
sedimentary
Limestone
sedimentary
13. What is the color left behind when you rub a mineral against a white tile called?
streak
19. What mineral has a yellow streak?
sulfur
17. What is the softest mineral?
talc
4. How are rocks classified?
By how they form
16. What is the repeating pattern found in a mineral called?
Crystal
14. What is the hardest mineral?
Diamond
15. What is the hardest natural substance in the world?
Diamond
5. How are rocks used?
In buildings - roof material, counters, floors, walls; as statues
Basalt
Ingenious
Granite
Ingenious
8. What do we use to measure the hardness of a mineral?
Mohs' hardness scale
22. Where are true minerals formed?
Only in nature
