Watch the video to learn more about heat.
Key concepts of Heat :
Temperature is a measurement of how hot or cold something is.
Temperature increases when heat is gained and decreases when heat is lost.
Heat is not the same as temperature. Heat is a form of energy that makes things hot
Matter expands when gaining heat.
Matter contracts when losing heat.
Heat travels (flows) from a hotter place to a colder place. Heat will continue to flow until both places reach the same temperature.
Good conductors of heat (e.g. metals) allow heat to flow through them easily.
Poor conductors of heat (e.g. wood, plastic, rubber, Styrofoam and air) do not allow heat to flow through them easily.
Change of states when matter gains heat:
Melting: Solid >>> Liquid
Boiling: Liquid >>> Gas
Evaporation: Liquid >>> Gas
When matter loses heat:
Freezing: Liquid >>> Solid
Condensation: Gas >>> Liquid
Water droplets will form either on the inner surface or outer surface of a cup depending on the temperature of the water.
Take this quiz to recap what you have learnt. Aim to reach the moon!