Help
Options
Didn't know it?
click below
click below
Knew it?
click below
click below
Don't Know
Remaining cards (0)
Know
retry
shuffle
restart
0:00
Embed Code - If you would like this activity on your web page, copy the script below and paste it into your web page.
Normal Size Small Size show me how
Normal Size Small Size show me how
SCI Ch2 L1, L2
Rocks and Minerals
| Term | Definition |
|---|---|
| Mineral | a naturally occurring, inorganic solid that has a crystal structure and a definite chemical composition |
| Inorganic | not formed from materials that were once part of a living thing |
| Crystal | a solid in which the atoms are arranged in a pattern that repeats again and again |
| Streak | the color of a mineral’s powder |
| Luster | how light reflects from a mineral’s surface |
| Mohs Hardness Scale | a scale ranking ten minerals from softest to hardest; used in testing the hardness of minerals |
| Cleavage | a mineral’s ability to split easily along flat surfaces |
| Fracture | the way a mineral looks when it breaks apart in an irregular way |
| Rock-Forming Minerals | the common minerals that make up most of the rocks of Earth’s surface |
| Granite | a usually light-colored rock that is found in continental crust |
| Basalt | a dark, dense, igneous rock with a fine texture, found in oceanic crust |
| Grains | the particles of minerals or other rocks that give a rock its texture |
| Texture | the look and feel of a rock’s surface, determined by the size, shape, and pattern of a rock’s grains |
| Igneous Rock | a type of rock that forms from the cooling of molten rock at or below the surface |
| Sedimentary Rock | a type of rock that forms when particles from other rocks or the remains of plants and animals are pressed and cemented together |
| Metamorphic Rock | a type of rock that forms from an existing rock that is changed by heat, pressure, or chemical reactions |
Created by:
HopeCrosby
Popular Earth Science sets