7th Science Book F- Inside Earth (ch 4) Minerals
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Created by:
millbrookjrhigh on November 4, 2011
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Description:
7th Science Book F- Inside Earth (ch 4) Minerals- 2 page quiz
Classes:
Monarchs, Millbrook Jr. High 7th Grade
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15 terms
Terms | Definitions |
|---|---|
 Fredrich Mohs invented a system | to describe and compare hardness of materials |
| What is a narrow channel or slab of a mineral that is sharply different from the surrounding rock? | vein |
| The purpose of adding coke to the iron ore in a blast furnace is | to heat the iron so that it separates from other elements in the ore |
| The minerals that make up most of the rocks of Earth's crust are called | rock forming minerals |
| Stainless steel is an example of a useful | alloy |
| A mineral that splits apart easily along flat surfaces has the property | cleavage |
| Color alone cannot be used to identify a mineral because | only a few minerals always have their own characteristic color |
| Earthy, silky, waxy, metallic, and pearly are terms used to describe a | luster |
| The size of a mineral's crystals depends on what? | the rate of cooling of the magma or solution from which the mineral formed |
| The softest mineral on the Mohs hardness scale | talc |
| Although cement, brick, steel, and glass all come from substances found in Earth's crust, they are not classified as minerals because | they are not naturally occurring |
| What is the hardest known mineral? | diamond |
| Why is coal not classified as a mineral? | it comes from the remains of plants and animals |
| the repeating pattern of a mineral's particles forms a solid called | a crystal |
| What is the equation for calculating density? | density + mass/volume |
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