igneous rocks

Front

What are igneous rocks formed from?

Back

Igneous rocks are formed from magma and lava.

Front

How are igneous rocks classified?

Back

Igneous rocks are classified based upon their composition and texture.

Front

True or False: Basalt is used for cobblestones and in landscaping.

Back

True

Front

What does high silica content in magma indicate about the rock's color?

Back

High silica content in magma results in lighter-colored rock.

Front

What does the color of an igneous rock tell us about?

Back

The color of an igneous rock indicates its composition.

Front

Define igneous rock.

Back

Igneous rock is a type of rock that forms from the cooling and solidification of magma or lava.

Front

What is magma?

Back

Magma is molten rock located beneath the Earth's surface.

Front

What is lava?

Back

Lava is molten rock that reaches the Earth's surface during a volcanic eruption.

Front

What are the two main types of igneous rocks?

Back

The two main types of igneous rocks are intrusive (plutonic) and extrusive (volcanic).

Front

What is the difference between intrusive and extrusive igneous rocks?

Back

Intrusive igneous rocks form from magma that cools slowly beneath the Earth's surface, while extrusive igneous rocks form from lava that cools quickly on the surface.