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Rocks and Minerals
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Rocks and Minerals

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Transcript

  • 1. Rocks
  • 2. Types of Rocks Sedimentary Rocks Metamorphic Rocks Igneous Rocks
  • 3. 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
  • 4. Types of Sedimentary Rocks Gypsum Sandstone Shale Limestone Conglomerate
  • 5. Metamorphic Rocks What are They?
    • Rocks that have changed
    • They were once igneous or sedimentary
    • Pressure and heat changed the rocks
  • 6. Types of Metamorphic Rocks Schist Gneiss
  • 7. Igneous Rocks What are They?
    • Fire Rocks
    • Formed underground by trapped, cooled magma
    • Formed above ground when volcanoes erupt and magma cools
  • 8. Types of Igneous Rocks Granite Scoria Pumice Obsidian
  • 9. Rocks Have Been Used For Many Years and For Many Things
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  • 25. Rocks