| A | B |
|---|
| powers continental drift | convection currents |
| comes from the sun | radiation currents |
| happens as a result of direct contact | conduction currents |
| movement of energy from a warmer object to a cooler object | heat transfer |
| name 3 types of heat transfer | radiation, conduction, and convection |
| the flow that transfers heat within a liquid | convection currents |
| a measure of how much mass there is in a volume of a substance | density |
| the heating and cooling of a fluid, changes in density and the force of this set convection currents in motion | gravity |
| imaginary force that pulls all things toward the center of the Earth | gravity |
| all objects are compared to this to get their density | water |
