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Earth Layers   A Journey To The Center Of The Earth
 

Earth Layers A Journey To The Center Of The Earth

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    Earth Layers   A Journey To The Center Of The Earth Earth Layers A Journey To The Center Of The Earth Presentation Transcript

    • A Journey to the Center of the Earth and back! The Layers of the Earth
    • If you could burrow to the center of the Earth, what would you expect to happen to the pressure, the temperature, and the solidity of the matter?
    • What are the 3 main layers of the Earth?
      • Crust
      • Mantle
      • Core
    • Let’s break it down! From the inside out…
    • The Core
      • The Inner Core
      • 1,228 km in diameter
      • Metal (iron)
      • HOT, HOT, HOT!!!!
      • (6,000° C)
      • - Very dense sphere (SOLID)
      • The Outer Core
      • 2,200 km thick
      • The Outer Core is LIQUID !
      The Inner Core at 6,000° C is HOTTER than the surface of the sun at 5,500° C. BUT, the center of the sun is 15 million degrees C.
    • The Mantle
      • Mesosphere
      • 2,500 km thick
      • “ meso-” means?
        • Middle
      • Strong, inner part of mantle
      • Asthenosphere
      • 250 km thick
      • “ astheno-” means?
        • Weak
      • Soft layer (putty-like)
      • Viscous solid
      • EX: butter, clay
    • The Lithosphere
      • Made of:
      • Upper Ridge Part of the Mantle
      • and
      • Crust
      • 15 – 300 km thick
      • “ litho-” means?
      • Rock
      • Is divided into pieces called?
      • Tectonic Plates
      • Plates slide over the Asthenosphere
    • Crust
      • Oceanic Crust – 5 km to 8 km
      • Continental Crust – 30 km to 100 km deep
    • “ Layers of the Earth” handout
    • Scale of Drawing: 500 km = 1 cm Asthenosphere Mesosphere Mantle Outer Core Inner Core Core Drawing thickness in centimeters (cm) Thickness in kilometers (km) Round to nearest hundred Layers