Types of Rocks

Front

What are the three main types of rocks?

Back

Igneous, Sedimentary, Metamorphic.

Front

How are igneous rocks formed?

Back

Igneous rocks are formed from the cooling and solidification of molten rock (magma or lava).

Front

What is sedimentary rock?

Back

Sedimentary rock is formed from the accumulation and compaction of mineral and organic particles.

Front

What is metamorphic rock?

Back

Metamorphic rock is formed when existing rocks are changed by heat, pressure, or chemically.

Front

Give an example of an igneous rock.

Back

Obsidian.

Front

Give an example of a sedimentary rock.

Back

Limestone.

Front

Give an example of a metamorphic rock.

Back

Marble.

Front

What process leads to the formation of sedimentary rocks?

Back

Erosion, deposition, compaction, and cementation.

Front

What is the difference between intrusive and extrusive igneous rocks?

Back

Intrusive igneous rocks form inside the Earth and cool slowly, while extrusive igneous rocks form on the surface and cool quickly.

Front

What is the rock cycle?

Back

The rock cycle is the continuous process of rock formation, breakdown, and reformation.