Understanding Heat

What is heat?

• A kind of animal

• A form of energy

• A type of plant

• A type of food

How does heat flow?

• From cool objects to hot objects

• From hot objects to cool objects

• From big objects to small objects

• From small objects to big objects

What happens to molecules when an object is heated?

• They stop moving

• They move slower

• They move faster

• They disappear

What is conduction?

• Flow of heat through radiation

• Flow of heat inside an object or between objects in contact

• Flow of heat in gases

• Flow of heat in liquids

What is an example of conduction?

• Heat from the sun

• Heat from a hot stove felt at a distance

• Heat from a fireplace warming a room

• Heat from a hot frying pan to food

What is convection?

• Flow of heat through empty space

• Flow of heat caused by the motion of a liquid or gas

• Flow of heat in metals

• Flow of heat in solids

What is an example of convection?

• Heating of water in a teakettle

• Heat from a campfire

• Heat from a light bulb

• Heat from a microwave

What is radiation?

• Flow of heat in solids

• Flow of heat in liquids

• Flow of heat in metals

• Flow of heat between objects not in contact

What is an example of radiation?

• Heat from a light bulb

• Heat from a fireplace warming a room

• Heat from a hot frying pan to food

• Heat from a hot stove felt at a distance

Where does most of Earth's heat come from?

• The moon

• The stars

• The sun

• The ocean