Convection Current. - ppt download - Free Printable

- Convection currents transfer heat from one place to another by mass motion of a fluid.
- The heat transfer function of convection currents drives the earth’s ocean currents, atmospheric weather, and geology.
- Air near the ground warms, becomes less dense, and rises.
- As the rising air cools, it becomes denser and sinks back toward the ground.
- This continuous cycle of rising warm air and sinking cool air creates a convection current.