This is a natural occurring solid substance that is normally made of minerals.

• mineral

• rock

• streak

• luster

Igneous, Metamorphic, and Sedimentary are all types of what?

• coal

• cookies

• minerals

• rocks

This is a term that means something you can observe with your senses.

• Minerals

• Rocks

• Property

• Grains

Tags

NGSS.5-PS1-3

This term means pieces of minerals that make up the rock. Rocks that have larger _______ are rough and scratchy. Rocks with no ________ are glassy.

• Luster

• Streak

• Hardness

• Grains

Tags

NGSS.MS-PS1-1

Coal is an unusual rock because it is not made of minerals at all.

• True

• False

These are the building blocks of rocks. Scientists have discovered over 3,000 of these.

• rocks

• minerals

• coal

• igneous

Tags

NGSS.MS-ESS3-1

Color ___________ cannot be used to identify most minerals because they come in so many different colors.

• alone

• only

• always

• never

This is the powder a mineral leaves behind when it is rubbed on a rough tile or another mineral.

• luster

• streak

• hardness

• color

This term refers to the way light bounces off the surface of a mineral. Some can be metallic or shiny.

• streak

• hardness

• color

• luster

Hardness is how easily a mineral can be scratched

• true

• false