Rocks and Minerals

A rock is a naturally formed solid made of one or more ________.

• elements
• chemicals
• minerals

An object that is solid, formed in nature, and has never been alive

• sand castle
• mineral
• plant

What would you use to determine the hardness of a mineral?

• color tiles
• streak test
• Mohs Scale
• weight scale

True or False:
A mineral is a solid, nonliving material with a definite chemical makeup.

• True
• False

How could you determine the streak of a mineral?

• streak test
• balance test
• weight test
• scratch test

A solid material that is made up of one or more minerals.

• mineral
• rock
• fossil
• soil

What property of rock is being observed when looking for whether it is shiny?

• luster

• hardness

• streak

• color

What property of rock is being observed when looking for what color is left after scratching it on a ceramic plate?

• hardness
• color
• cleavage
• streak

What is Hardness?

• The tendency of a mineral to split easily along flat surfaces.
• A measure of how easily a mineral can be scratched.
• The way a mineral shines, or reflects light.

What is Luster?

• The color of a mineral when it is ground into a powder.
• A measure of how easily a mineral can be scratched.
• The way a mineral shines, or reflects light.