It is the temperature at matter begins to change from a solid to liquid - melting point, has low melting point - butter, has high melting pint - iron, float on water - wood , Copper-gold alloy - jewels, heating coils. - - Nickel-chrome alloy, the temperature at which matter begins to change from a liquid to agaseous state. - Boiling point, are soft at ordinary temperature - rubber, can’t be soften by heating - coal, don’t allow electricity - Sugary solution, allow electricity - Salt solution, Bad conductors of heat - plastic wood, Good conductors of heat - metals, Handles of cooking pans - wood and plastic, . A gas its density is lower than that of air. - hydrogen, the mass - measuring unit is gm.,

science prep1

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