3.5 6th

Rocks are hard materials that make up the earth's crust.

• True

• False

Rocks can be classified as...

• Igneous, Sedimentary, Metamorphic

• Mineral, Magma, Lava

• Hawaiian, Strombolian, Plinian

• Intrusive, Extrusive, Basalt

Rocks are a mixture of minerals.

• True

• False

Tags

NGSS.MS-PS1-1

What type of rock forms when molten rock solidifies?

• Igneous

• Minerals

• Extrusive

• Granite

Which of the following is an example of intrusive rocks?

• granite

• pumice

• basalt

• obsidian

Which well known igneous rock contains quartz, feldspar, and mica?

• obsidian

• pumice

• granite

• basalt

Magma is called (a)   once it flows from the volcano.

Igneous rock that is formed at the earth's surface is called ___________ igneous rock.

• intrusive

• magma

• lava

• extrusive

(a)   rocks have a coarse-grained appearance because they are formed by slowly cooling magma.

Pumice is the most common igneous rock and can be found almost everywhere on land.

• True

• False