WATCH THE VIDEO TO LEARN MORE ABOUT HEAT!

 

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TAKE THIS QUIZ TO PRACTICE WHAT YOU HAVE LEARNT.

SCORE AS WELL AS YOU CAN TO GET CLOSER TO THE MOON!


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.

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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