Chapter 4, sec 2-3

Match it! Select the correct answer from the pull down...Good luck!

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

Slow cooling results in ________ crystals

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

When lava cools quickly, crystals are

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

Most of the Earth's minerals contain

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