Plate Tectonics Understanding what causes the plates to move

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

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

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)

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

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)

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