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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 - PowerPoint PPT Presentation
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Convection and the Mantle
Mrs. Wach
Sixth Grade (Chapter 1.3)
Heat is transferred in one of three ways.
1. RADIATIONThe transfer of
energy/heat that is carried in rays, like light.
2. CONVECTIONThe transfer of
energy/heat by the movement of a fluid.
3. CONDUCTIONThe transfer of
energy/heat between materials that are touching.
How Is Heat Transferred?
What Does It Look Like?
What Does It Look Like?
What Does It Look Like?
What Does It Look Like?
Convection Currents in Soup
https://www.youtube.com/watch?v=BPCV5mSyVQY
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.
Convection Current
CONVECTION CURRENTHeating and cooling of a fluid, changes in the fluid’s density, and the force of gravity combine to set convection currents in motion.
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.
Convection in Earth’s Mantle
Convection in Earth’s Mantle
Convection in Earth’s Mantle
ANIMATIONhttp://maggiesscienceconnection.weebly.com/mantle-convection-plate-tectonics-earthquakes--volcanoes.html