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Mr. Olson 5th Grade Science Chapter 1E
Question | Answer |
---|---|
What is a solid element or compound from Earth's crust that has a definite chemical compostion and crystal shape? | mineral |
A deposit of sediment that contains important mineral fragments is called a _______? | placer |
What can you use to estimate the hardness of a mineral? | Mohls' scale |
What is the hardest mineral? | diamond |
The process of removing metals from ore is called what? | smelting |
What is a rock material made of sand and gravel and a binder called? | concrete |
What are minerals from which metals can be removed called? | ores |
What is a mineral made from silicon and oxygen called? | quartz |