Explain convection with examples? (both natural and forced convections)

CONDUCTION:

• Touching a stove and being burned
• Ice cooling down your hand
• Boiling water by thrusting a red-hot piece of iron into it

CONVECTION:

• Hot air rising, cooling, and falling (convection currents)
• An old-fashioned radiator (creates a convection cell in a room by emitting warm air at the top and drawing in cool air at the bottom).

RADIATION:

• Heat from the sun warming your face
• Heat from a lightbulb
• Heat from a fire
• Heat from anything else which is warmer than its surroundings.