Geology rocks and minerals

Front

What type of igneous rock forms around a volcano?

Back

Extrusive igneous rock is formed from lava that cools and solidifies on the Earth's surface.

Front

What particle is negatively charged and orbits the nucleus of an atom?

Back

Electron.

Front

What is the process called that breaks down rocks and other materials on Earth's surface?

Back

Weathering is the process that breaks down rocks into smaller pieces.

Front

What type of bonding occurs when a sodium atom donates an electron to a chlorine atom?

Back

Ionic bonding occurs when oppositely charged ions attract each other.

Front

What is the term for the color of the powdered form of a mineral?

Back

Streak is the term used to describe the color of a mineral's powder.

Front

What is the difference between erosion and weathering?

Back

Weathering is the breakdown of rocks, while erosion is the movement of those broken materials.

Front

What is the definition of a mineral?

Back

A mineral is a naturally occurring, inorganic solid with a definite chemical composition and crystalline structure.

Front

What is the Mohs scale used for?

Back

The Mohs scale is used to measure the hardness of minerals.

Front

What is the term for the way a mineral reflects light?

Back

Luster refers to the way a mineral reflects light.

Front

What is cleavage in minerals?

Back

Cleavage is the tendency of a mineral to break along flat, even surfaces.