Heat is Transferred 3 Ways

• Conduction – the transfer of thermal energy between particles within a substance by touchE.g. Getting a burn from picking up a hot pot on the stove

• Radiation – transfer of energy by electromagnetic waves E.g. Roasting marshmallows over a fire

• Convection –the transfer of thermal energy by movement of currents within a gas or a liquidE.g. Air and ocean current, boiling water

HEAT TRANSFER SCENES

Physical Sciences

Can you identify which type of heat transfer is occurring?

Ben’s breath on a cold day

Convection –The Ben’s breath is circulating in the air

Hot cocoa

Convection –The heat in the hot cocoa is travelling in a current in the cupConduction –When your hand touches the cup

Soup spoon in hot soup

Conduction –Heat transferred from soup to spoon through direct contact

A geyser named Geysirs

-a hot spring that releases water and hot steam out of the

Earth’s surface Convection –Hot steam and water are circulating under and above ground in currents

Chicks huddling under a heat lamp

Radiation –Heat is being transferred by electromagnetic waves (Light energy) via the heat lamp

Baking chocolate cake

Convection –Heat in the oven circulates in currents to bake the cakeConduction –The woman is transferring heat to her oven mitts

Melting ice cream

Conduction –Heat is being transferred from the hand to the ice cream cone causing the ice cream to melt

Fireplace

Radiation –The room is being heated through electromagnetic waves (light energy)

Boiling water

Convection –The heat is circulating in a current through the boiling water

Conduction –Heat is being transferred through touch from the hot water directly to the eggs