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Plate Tectonics

Discover the causes behind the movement of Earth's tectonic plates and explore evidence of the hot core. Learn about the different layers of the Earth, forms of heat transfer, and simulate plate movement using nachos. Uncover the origin of our atmosphere and oceans through the release of gases and water vapor from magma, protected by Earth's magnetic field.

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Plate Tectonics

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  1. Plate Tectonics Understanding what causes the plates to move

  2. EQ: How do you know the Earth’s Core is hot? • Fact: No one has ever drilled through crust • Evidence: • Magma • Volcanoes • Earthquakes • Tsunamiis

  3. Layers of the Earth Upper Mantle Lower Mantle asthenosphere Outer Core Inner Core

  4. 3 Forms of Heat Transfer • Radiation- transfer of energy without touching; light --- heat energy • Conduction- transfer of heat energy through solids (metal pan for cooking) very even • Convection- transfer of heat energy in a liquid very unequal (hot spots and cold areas develop that’s why you stir soups)

  5. Nacho-tonics • Using Nachos you can simulate why the Earth’s plates move • The materials will represent the parts of the Earth

  6. Nacho-tonics • Pan = core (inner core specifically since it’s a solid) • Cheese = Mantle (liquid like but high density material) • Chips= Earth’s Crust (solid less dense than liquid underneath)

  7. Origin of Atmosphere and Oceans • Magma released gases and liquid Water Vapor as it came to the Surface • This can be “proven by” placing lid over pan. Lid acts as Earths Magnetic Field Shielding Earth from Solar Wind • As a result a “thick” atmosphere develops and clouds and rain form

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