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Stack #32930

Mr. Olson 5th Grade Science Chapter 1E

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
Created by: mr.olson