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Transcript of Let's ROCK
Cycle Igneous Sedimentary Rock Metamorphic Rock Minerals Formed from magma beneath the Earth's surface.
Volcanoes erupt an spread molten lava onto the surface of the Earth. The lava cools, hardens and becomes solid. Igneous rock is formed. Sediments from weathered (broken down into pieces) rock gets compressed into layers. Rocks that have been changed by heat and pressure. All rocks are made of minerals. Minerals are solid inorganic material, which means they were never alive. http://www.indiana.edu/~geol105/images/gaia_chapter_5/igneous_rock_textures.htm http://geology.com/rocks/sedimentary-rocks.shtml Graphite - used in pencils
Flourite - used in tooth[aste
Coal - used as a energy source
Salt, Sand, and Gravel are all minerals Rock Cycle Sedimentary
Rock Weathered into sediment covered by layers of sediment formed from Lava Layers from sediment and deposition Heat and pressure smash it together Earth's heat melts it and it becomes lava