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March 9 Science Test

Across
Grow atom by atom to form a particular structure; these structures are grouped into six categories based on the number and angles of the crystal faces
When a mineral breaks apart in an irregular way
Each mineral has a characteristic density (d-m/v);
Substance NOT made up of living things or remains of living things; like clam shells
The way a mineral reflects light from its surface
Down
Color of a mineral in powdered form. found by rubbing it on a white tile, or ______ plate
Using the Mohs Hardness Scale, this scale ranks ten minerals from softest to hardest
If a mineral breaks easily along a flat surface; In geology, the tendency of a mineral to split along specific planes of weakness to form smooth, flat surfaces
Must have the following characteristics: 1. occur in the natural world; 2. must be inorganic - cannot come from from materials that were once a part of a living thing; 3. a solid - definite shape and volume; 4. particles that make it up line up in a repeating pattern; 5. definite chemical composition or range of compositions
Naturally occurring, inorganic solid that has a definite crystal structure and chemical composition
Used to identify minerals - some but not all minerals have their own characteristic color