Types of Rocks -NGSS

Front

What are the three main types of rocks?

Back

Igneous, Sedimentary, and Metamorphic.

Front

What type of rock is formed from cooled magma or lava?

Back

Igneous rock.

Front

What type of rock is formed from the accumulation of sediments?

Back

Sedimentary rock.

Front

What type of rock is formed under heat and pressure?

Back

Metamorphic rock.

Front

What is the difference between intrusive and extrusive igneous rocks?

Back

Intrusive igneous rocks form inside the Earth and have larger crystals, while extrusive igneous rocks form on the surface and have smaller crystals.

Front

What is an example of a sedimentary rock?

Back

Sandstone.

Front

What is an example of a metamorphic rock?

Back

Marble.

Front

What process turns sediment into sedimentary rock?

Back

Lithification.

Front

What is the role of heat in the formation of metamorphic rocks?

Back

Heat causes minerals to recrystallize, changing the rock's structure.

Front

Can sedimentary rocks contain fossils?

Back

Yes, sedimentary rocks can contain fossils.