Front

What is the color of a mineral in powder form called?

Back

Streak

Front

What is soil made of?

Back

All of the above: pieces of rock, air and water, matter that was once alive.

Front

What is the solid, geometric form of a mineral produced by a repeating pattern of atoms?

Back

Crystal

Front

What percentage of the Earth's minerals does China mine?

Back

90%.

Front

Which layer of soil contains lots of roots and minerals for growing plants?

Back

Topsoil.

Front

What is the term for the resistance of a mineral to being scratched?

Back

Hardness.

Front

What is the process by which rocks are broken down into smaller pieces?

Back

Weathering.

Front

What is the term for the weight of a mineral compared to the weight of an equal volume of water?

Back

Specific Gravity.

Front

What is the term for the way light reflects off a mineral's surface?

Back

Luster.

Front

What is the layer of soil that is made up of weathered rock and minerals?

Back

Subsoil.