The Rock Cycle

Front

What are the three types of rocks in the rock cycle?

Back

The three types of rocks are igneous, sedimentary, and metamorphic.

Front

How are igneous rocks formed?

Back

Igneous rocks are formed from the cooling and solidification of magma or lava. They can be intrusive (formed inside the Earth's crust) or extrusive (formed on the Earth's surface).

Front

What are intrusive igneous rocks?

Back

Intrusive igneous rocks are formed from magma that cools and solidifies beneath the Earth's surface.

Front

What are extrusive igneous rocks?

Back

Extrusive igneous rocks are formed from lava that cools and solidifies on the Earth's surface.

Front

How are sedimentary rocks formed?

Back

Sedimentary rocks are formed from the accumulation and compaction of mineral and organic particles over time.

Front

How are metamorphic rocks formed?

Back

Metamorphic rocks are formed from existing rocks that are changed by heat, pressure, or chemically active fluids.

Front

What qualities are associated with igneous rocks?

Back

Igneous rocks are typically hard and dense, with a crystalline texture.

Front

What qualities are associated with sedimentary rocks?

Back

Sedimentary rocks often have layers and may contain fossils. They are usually softer than igneous rocks.

Front

What qualities are associated with metamorphic rocks?

Back

Metamorphic rocks are characterized by their foliated or non-foliated texture and can be very hard.