Heat Transfer

Heat is transferred in 3 ways;

• Convection
• Radiation
• Conduction

Convection: When heat is transferred through liquids or gas.

Radiation: Its the heat you feel.

Conduction: When heat is transferred by direct contact or touching something else.

As Sun light hits the earth different things happen to it before we recieve it.

• White clouds reflect it
• Greenhouse gases absorb it
• The ground absorbs it but reflects a bit of it
• The sea absorbs it
• Some particles reflect it or absorb it
•  The Earth recives only 70% of heat and 30% is reflected

These are a few links which will teach you more about convection, radiation and conduction!:

http://www.youtube.com/watch?v=SYnP4TGOGRY&feature=related

http://www.youtube.com/watch?v=wr8Z4SCETPs