6.+Stefie

Radiation is when heat moves in waves. A heater creates heat waves by just being hot and heating up the air around it.

Convection is when cold moves to heat. In a water pot. When boiled the water will move round and round in currents. The currents move around and arround. Just like in air currents. The cold air moves to the hot air creating wind currents of highs and lows. This is what creates wind.

Conduction is when heat moves through and object. If you put a metal pole in a flame and hold it with your bare hand after a while your hand will start to burn. This is why it is cooking tools are made out of or have a handle that doesn't conduct heat very well.

From this diagram you can have Solar, hydro, wind, heat geo thermal electricity.