Methods of Heat Transfer (Junior Cert Home Economics): Flashcards

Heat travels from molecule to molecule through a solid object

Frying food - heat moves from ring to pan to food

Heated liquids/gases rise, cooler ones replace them

Movement when heated fluids rise & cooler replace them

Baking in oven - hot air circulates around food

Heat transferred directly from source to food surface

Grilling - heat rays cook food without contact

Uses heat rays & no contact needed

Conduction and convection

Heating the saucepan

Water heating and cooking the pasta