Question

Identify and investigate the properties of minerals. Identify and classify a variety of rocks.

based on physical characteristics from their origin, and explain how they are related using the
rock cycle. (i.e. Sedimentary, igneous, and metamorphic rocks)

Answer 1

There are three main types of rocks: sedimentary, igneous, and metamorphic. Each of these rocks are formed by physical changes—such as melting, cooling, eroding, compacting, or deforming—that are part of the rock cycle. Sedimentary rocks are formed from pieces of other existing rock or organic material.

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Answer 2

Igneous rocks are classified on the basis of their composition and their texture. Magma, and the igneous rock it becomes, has a range of chemical compositions. For example, basalt is a mafic lava flow rock which originates from melting of the upper mantle.

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