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Igneous rocks
Metamorphic Rocks
Sedimentary Rocks
•Igneous rock is formed when magma cools and solidifies, it may do this above or below the Earth's surface.
•Metamorphic rocks can be formed by pressure deep under the Earth's surface, from the extreme heat caused by magma or by collisions and friction of tectonic plates.
•Sedimentary rocks are formed by sediment that is deposited over time, usually as layers at the bottom of lakes and oceans.
18. Describe how sedimentary, igneous, and metamorphic rocks form and change in the rock cycle (ESS-M-A6)
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