Rocks
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Rocks

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A brief presentation about rocks by Amber Fox.

A brief presentation about rocks by Amber Fox.

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  • 1. This Presentation is About:
    Igneous Rocks
    Sedimentary Rocks
    Metamorphic Rocks
  • 2. Igneous Rock
    Igneous rock is formed from molten rock that hardened into a solid state.
  • 3. Types of Igneous Rock
    There are two types of igneous rock:
    • Extrusive, which forms from lava that hardens on Earth’s surface.
    • 4. Intrusive, which forms from magma that hardens beneath Earth’s surface.
  • Lava Cools Quickly and Hardens into Extrusive Rock
    Molten Rock Above Surface (Lava)
    Extrusive Rock
  • 5. Molten Rock Below Surface (Magma)
    Intrusive Rock
    When the Volcano Stops Erupting, the Magma Cools Slowly and Hardens into Intrusive Rock
  • 6. Examples
    Intrusive
    Extrusive
  • Sedimentary Rock
    Sedimentary rock is made of sediment that has been deposited, compacted, and cemented.
  • 11. Types of Sedimentary Rock
    There are three types of sedimentary rock:
    • Clastic, which is formed when rock fragments are squeezed together.
    • 12. Organic, which forms when the remains of plants and animals are deposited in thick layers.
    • 13. Chemical, which forms when minerals that are dissolved in a solution crystallize.
  • Clastic Rock
    Rock Fragments Squeezed Together
    Scattered Rock Fragments
  • 14. Organic Rock
    Layer of Organic Material Above Soil
    Organic Material gets Covered with Soil and Compacts Together
    Compacted Organic Material Eventually Hardens into Rock
    Soil
  • 15. Chemical Rock
    Minerals Get Deposited in Water
    Minerals Dissolve in Water
    Minerals Crystallize
  • 16. Examples
    Clastic
    Organic
    Chemical
    • Limestone
  • Metamorphic Rock
    Metamorphic rock is any rock that has gone under immense heat and pressure to transform into another rock.
  • 21. Types of Metamorphic Rock
    There are two types of Metamorphic rock:
    • Foliated, which is when the rock grains are arranged in parallel layers or bands.
    • 22. Nonfoliated, which is when the rock grains are arranged randomly.
  • Foliated Rock
  • 23. Nonfoliated Rock
  • 24. How Metamorphic Rocks are Formed
    HEAT AND PRESSURE
    Earth’s Crust
    Magma
    Rock Layers
  • 25. Examples
    Foliated
    Nonfoliated
  • Amber Fox Productions
    Text: Amber Fox
    Illustrations: Amber Fox
    Animation: Amber Fox
    Sound: Amber Fox
  • 29. Thank You for Watching This Program!