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5th Science Test E1
Mr. Olson 5th Grade Science E 1
| Mr. Olson 5th Grade E 1 | Definitions |
|---|---|
| What kind of luster does a mineral have that reflects light and polished metals have? | metallic |
| How easily a mineral can be scratched is called what? | hardness |
| The melted iron that remains after the smelting process is called what? | pig iron |
| The color of the powder made when a mineral is scratched against a tile is called what? | streak |
| The way light reflects from the surface of a mineral is called what? | luster |
| A mixture of metals is called what? | alloy |
| The way in which a mineral splits along flat surfaces is called what? | cleavage |
| The most common sand in the world is ______ sand. | Quartz |
| What is a solid element or compound from Earth's crust that has a definite chemical composition and crystal shape? | mineral |
| The process of removing metals from ore is called what? | smelting |
| A deposit of sediment that contains important mineral fragments is called a ______. | placer |
| What is a rock material made of sand, gravel, and binder called? | concrete |
| What can you use to estimate the hardness of a mineral? | Mohs' Scale |
| What are minerals from which metals can be removed called? | ores |
| What is the hardest mineral? | diamond |
| What is a mineral made from silicon and oxygen called? | quartz |