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

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  • 1. A Journey to the Center of the Earth and back! The Layers of the Earth
  • 2. 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?
  • 3. What are the 3 main layers of the Earth?
    • Crust
    • Mantle
    • Core
  • 4. Let’s break it down! From the inside out…
  • 5. 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.
  • 6. 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
  • 7. 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
  • 8. Crust
    • Oceanic Crust – 5 km to 8 km
    • Continental Crust – 30 km to 100 km deep
  • 9. “ Layers of the Earth” handout
  • 10. 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