Formed from other rock particles or plant or animal remains and pressed and cemented together

Rock formed when an existing rock changed by heat, pressure or chemical reactions. Form deep underground-

Igneous rocks are classified according to their origin, mineral composition and

Basalt is the most common of this type of _____________rock , formed from lava that erupted onto the Earth\\\\\\\'s surface.

Igneous rock that forms when magma hardens beneath Earth\\\\\\\'s surface, such as granite

When lava cools quickly, crystals are

Slow cooling results in ________ crystals

Most of the Earth's minerals contain

Lava that is low in silica forms basalt which is very _______ in color.

Magma, which is high in silica is _________ in color; such as granite.

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