Heat is Transferred 3 Ways Convection –the transfer of thermal energy by movement of currents within a gas or a liquid E.g. Air and ocean current, boiling water Radiation – transfer of energy by electromagnetic waves E.g. Roasting marshmallows over a fire Conduction – the transfer of thermal energy between particles within a substance by touch E.g. Getting a burn from picking up a hot pot on the stove

Can you identify which type of heat transfer is occurring? Heat transfer scenes Physical Sciences Can you identify which type of heat transfer is occurring?

Ben’s breath on a cold day convection Convection –The Ben’s breath is circulating in the air

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

Soup spoon in hot soup Conduction 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 Convection –Hot steam and water are circulating under and above ground in currents

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

Baking chocolate cake Convection Convection –Heat in the oven circulates in currents to bake the cake Conduction –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 Conduction

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

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 Convection