The Rock-etts

By;Cynthia

Rocks for Dummies

Rocks are composed of minerals.Minerals are inorganic substances with a definite chemical composition.They may also be inorganic which are formed by living organisms.Rocks are classified by their origin. There are three types of rocks.


1. Igneous

2.Metamorphic

3.Sedimentary

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The Rock Cycle

The rock cycle is a model showing the relationship as to how rocks and sediments change over time.