Three main rocks
by Tami Yazzie
1. Sedimentary Rock
2. •Sedimentary rocks are formed by sediment that is deposited over time, usually as layers at the bottom of lakes and oceans
3. •This sediment can include minerals, small pieces of plants and other organic matter
4. How sedimentary rocks form?
5. 3. Metamorphic Rocks
6. Rock that was once one form of rock but has changed to another under the influence of heat, pressure, or some other agent without passing through a liquid phase.
7. metamorphic rocks
8. 1. Igneous Rock
8.1. Igneous rock (derived from the Latin word ignis meaning fire) is one of the three main rock types, the others being sedimentary and metamorphic. Igneous rock is formed through the cooling and solidification of magma or lava. Igneous rock may form with or without crystallization, either below the surface as intrusive (plutonic) rocks or on the surface as extrusive (volcanic) rocks
9. How Igneous rocks are formed
10. Three main rock