Term Definition Illustration

Thermal Energy

transfer is heat moving from a warmer object to a cooler object. This is known as thermal energy transfer.

TemperatureA measure of how hot or cold something is

Physical Change

Begins and end with the same type of matter. You can cut, crush, bend, and tear matter.

EX: cutting paper, ice melting, or water freezing

Heat causes matter to expand and when being cooled it will contract

Chemical Change

Begins with one kind of matter and ends with another. Also known as a chemical reactionMay give off heat, light, or electricity

Examples:Fireworks

Burning wood Baking cookie

Rust Baking soda and vinegar

Term Definition Illustration

Conduction

The transfer of heat by touching something that is hot

heat is transferred from the flame to the

pot

Convection

the process of heat transfer in liquids and gases

as the pot heats it transfers energy to the water

Radiation

The transfer of heat that travels in waves from a source, such as a fire or the sun

Conductor

A substance that allows heat to pass through it easilyAny kind of metal is a conductor Iron, aluminum, copper, steel

InsulatorA substance that does not allow heat to pass through easily; a substance that prevents heat from being lostRubber, plastic, fleece