Rocks and Minerals
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Rocks and Minerals

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Rocks and Minerals Rocks and Minerals Presentation Transcript

  • Rocks
  • Types of Rocks Sedimentary Rocks Metamorphic Rocks Igneous Rocks
  • Sedimentary Rocks How They are Made
    • Wind and water break down the earth
    • Bits of earth settle in lakes and rivers
    • Layers are formed and build up
    • Pressure and time turn the layers to rock
  • Types of Sedimentary Rocks Gypsum Sandstone Shale Limestone Conglomerate
  • Metamorphic Rocks What are They?
    • Rocks that have changed
    • They were once igneous or sedimentary
    • Pressure and heat changed the rocks
  • Types of Metamorphic Rocks Schist Gneiss
  • Igneous Rocks What are They?
    • Fire Rocks
    • Formed underground by trapped, cooled magma
    • Formed above ground when volcanoes erupt and magma cools
  • Types of Igneous Rocks Granite Scoria Pumice Obsidian
  • Rocks Have Been Used For Many Years and For Many Things
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  • Rocks