RECAP THE CONCEPTS
Temperature vs 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.
Heat Flow
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.
Expansion and contraction
Matter expands when gaining heat.
Matter contracts when losing heat.
Change of states of matter during heat gain and heat loss
When matter gains heat:
Melting: Solid >>> Liquid
Boiling: Liquid >>> Gas
Evaporation: Liquid >>> Gas
When matter loses heat:
Freezing: Liquid >>> Solid
Condensation: Gas >>> Liquid
Practice: Mastering Keywords
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