science 6th grade
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What is an ALLOY?
a solid mixture of two or more metals
A mineral with a repeating pattern of particles is a ______.
How a mineral reflects light is called it's _____.
Rock that contains a metal or other economically useful mineral is _____.
A person who mines for minerals is called a ______.
The precess that removes metal from ore is called ______.
Color of a mineral's powder is called a ____.
A narrow channel or slab of a mineral is called a ______.
Describe how minerals form.
- Solutions evaporate
- Crystallization of melted minerals
How do mining companies restore land after the mining process ends?
Grade the land and replace the soil.
How does flow or fast cooling magma affect the size of mineral crystals?
- Cools SLOWLY - LARGE crystals form
- Cools QUICKLY - SMALL crystals form
*think- if cools to fast, there is no time for big crystals
Name and describe the three types of mineral practices. (SOS)
- Strip mining -
- Open Pit Mining-
- Shaft Mining-
What is the hardest known mineral?
What is the softest known mineral?
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