Types Of Rocks

By Anna Sartes

Igneous Rock

Igneous Rock is formed by volcanoes. It can also be formed deep inside the Earth as magma cools slowly. Igneous Rock can give clues about where it was formed.

Sedimentary Rock

Sedimentary Rock is formed from sediment that is cemented together. It is also built up and forms to sedimentary rock. Sandstone, shale, and limestone are types of Sedimentary Rock.
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Metamorphic Rock

Marble and Quartz are types of metamorphic rock. The word metamorphic comes from the Greek meaning to change form. Metamorphic rock is changed by heat.