C.K.K.K.+1.2

toc =Section 2 (1-2) Convection Currents and the Mantle=

Vocabulary
heat transfer- movement of energy from an warmer object to a cooler object.-three types are radiation, conduction, and convention. radiation- energy transfer through empty space. conduction - heat transfer by movement of a heated fluid convection- heat transfer by direct contact of matter. density- how much mass there is in a volume of substance. convection current- flow which transfers heat within a fluid.

Convection in the earths mantle

 * convection currents
 * lithosphere and crust
 * asthenosphere