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Convection and the Mantle

Convection and the Mantle. Mrs. Wach Sixth Grade (Chapter 1.3). How Is Heat Transferred?. Heat is transferred in one of three ways. CONVECTION The transfer of energy/heat by the movement of a fluid. RADIATION The transfer of energy/heat that is carried in rays, like light. CONDUCTION

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Convection and the Mantle

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  1. Convection and the Mantle Mrs. Wach Sixth Grade (Chapter 1.3)

  2. How Is Heat Transferred? • Heat is transferred in one of three ways. • CONVECTION • The transfer of energy/heat by the movement of a fluid. • RADIATION • The transfer of energy/heat that is carried in rays, like light. • CONDUCTION • The transfer of energy/heat between materials that are touching.

  3. What Does It Look Like?

  4. What Does It Look Like?

  5. What Does It Look Like?

  6. What Does It Look Like?

  7. Convection Currents in Soup GRAVITY: Cooler soup become more dense. Gravity pulls soup back down to bottom of pot where it is reheated. TOP: Warm, less dense soup moves upward. It become cooler. MIDDLE: As soup expands, its density decreases. BOTTOM: The soup at the bottom gets hot and expands. https://www.youtube.com/watch?v=BPCV5mSyVQY

  8. Convection Current CONVECTION CURRENT Heating and cooling of a fluid, changes in the fluid’s density, and the force of gravity combine to set convection currents in motion.

  9. Convection in Earth’s Mantle • Inside Earth, heat from the core and the mantle act like the stove that heats the pot of soup. • Heat from the core and mantle itself causes convection currents in the mantle.

  10. Convection in Earth’s Mantle

  11. Convection in Earth’s Mantle ANIMATION http://maggiesscienceconnection.weebly.com/mantle-convection-plate-tectonics-earthquakes--volcanoes.html

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