Unit 2 Rocks and Minerals

A solid , inorganic, naturally occurring material that has a crystal form and its own set of properties

• Mineral
• Hardness
• Streak
• Luster

The ability of a mineral to resist being scratched and is categorized using the Moh’s Scale

• Hardness
• Cleavage
• Streak
• Luster

The color of the mark that a mineral makes when it is scraped on a tile

• Streak
• Hardness
• Luster
• Cleavage

The breaking of a mineral along smooth, flat surfaces

• Cleavage
• Streak
• Hardness
• Lus

The way that a mineral’s surface reflects light. It can be metallic, shiny, dull/earthy or glassy.

• Luster
• Streak
• Hardness
• Cleavage

The makeup of an object

• Composition
• Cleavage
• Luster
• Streak

Solid made up of molecules arranged in a regular, repeating pattern

• Crystal
• Cleavage
• Luster
• Streak

 The layer between Earth’s crust and the outer core

• Mantle
• Crust
• Inner Core
• Outer Core

The outermost layer of the Earth.  It is like the skin of an apple, very thin at about 3-5 miles (8 kilometers)

• Crust
• Mantle
• inner Core
• Outer Core

A _______ is any coherent, naturally occurring substance.  They can be made up of organic material and minerals.

• Rock
• Mineral
• Hardness
• Luster