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Science Review sheet

TermDefinition
Temperature the average amount of kinetic energy of the particles in a substance
Thermal Energy the total energy of all particles in an object
Heat a flow of energy between objects at different temperatures (transfers from warmer to cooler)
Thermometer tool to measure temperature
Conduction the transfer of heat energy by molecules touching each other
Convection heat transferred by the movement of currents within a fluid
Radiation the transfer of energy by electromagnetic waves.
Solid has a definite shape and volume
Liquid definite volume, but changing shape
Gas has no definite shape or volume
Endothermic the molecules absorb energy from the environment to make the phase change occur
Exothermic the molecules release energy to the environment to make the phase change occur
Melting The change of a solid to a liquid by absorbing heat
Freezing the change of a liquid to a solid
Evaporation the change of a liquid to a gas by absorbing heat ( occurs only on surface)
Boiling the change of a gas to a liquid by releasing heat
Condensation the change of a gas to a liquid by releasing heat.
Created by: user-1904618
 

 



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