1 1 Convection When you boil water the lower water layer heats up quickly then it goes up and the...

1 Convection

When you boil water the lower water layer heats up quickly then it goes up and the upper water layer ( cold ) goes down.This process takes place many times till all water become hot.This movement of water from down to up then to down we call it CONVECTION

1 Convection

This process takes place also in air like in warming up home by a heater

Convection takes place in gases and fluids

Sea breeze

At morning, land gets hot faster than sea water so the air on the water is cold ( high pressure ) but the air will get hot than rise ( low pressure ).At this time a cold air will move from sea to land ( SEA BREEZE)

Land breeze

At night, land gets cold faster than sea water which becomes hot. The air on the water will get hot so it will rise ( low pressure). On land, the air still cold ( high pressure). At this time air will move from land to sea ( LAND BREEZE)

2 Conduction

Heat can be transferred by solids. But at this time particles of a matter don’t carry heat from point to another but heat transferred by touching among the particles of a solid matter. Here we call this CONDUCTION

Heat conduction takes place in solids

1 Thermal good conductors

2 Thermal bad conductors

3 RadiationHeat can travel in space not only by gases and fluids ( convection ) or by solids ( conduction ) but also in space like heat coming from the sun.

Heat radiation takes place in space

See the following diagram and summarize the ways by which heat transferred