Rocks and Minerals

Streak is the color of a mineral's ___________.

• luster

• powder

• cleavage

• fracture

The flat sheets a mineral makes when broken is called __________.

• cleavage

• luster

• hardness

• streak

What does the Mohs scale measure?

• density

• hardness

• cleavage

• luster

A rock that forms from many small particles of other rocks is a(n) ________.

• igneous rock

• sedimentary rock

• metamorphic rock

• extrusive rock

Tags

NGSS.MS-ESS2-1

The most common minerals in Earth's crust are ________.

• evaporates

• organic minerals

• metal ores

• silicates

What kind of igneous rock usually contains large crystals?

• organic

• intrusive

• clastic

• extrusive

The most common intrusive rock on Earth's surface is _______.

• diorite

• rhyolite

• granite

• pegmatite

A fine-grained igneous rock cooled ________.

• quickly

• slowly

• not fast enough

• not enough information

Tags

NGSS.MS-PS1-4

NGSS.MS-PS3-4

Shale is a clastic rock, meaning that it forms when _______ are squeezed or cemented together (or both).

• rock fragments

• remains of plants and animals

• minerals

• magma

Tags

NGSS.MS-ESS2-1

Which sedimentary rock was made from once-living things?

• coal

• sandstone

• halite

• shale