Presentation on theme: "Convection Currents and the Mantle"— Presentation transcript:
1 Convection Currents and the Mantle OBJECTIVES:Explain how heat is transferredIdentify what causes convection currents
2 Radiation The transfer of energy through empty space Examples: -Sunlight-Open flame
3 ConductionHeat is transferred by direct contact of particles of matterHeat travels from hot to coldExamples:Hot frying pan, Fire poker stick
4 ConvectionThe movement of a fluid, caused by differences in temperature and density, that transfers heat from one part of the fluid to anotherExamples:-Heating water-Mantle in the Asthenosphere-Air --wind
5 Checkpoint-1What are the three types of heat transfer?