SCIENC & TECHNOLOGY
Tuesday, June 01, 2010
PHYSICAL CHANGES
MATTER MAY UNDERGO A PHYSICAL CHANGE IF IT GAINS OR LOOSES ENERGY AN ICE LOLLY MELTS IN THE SUN BECAUSE IT GAINS HEAT ENERGY.PHYSICAL CHANGES CAN BE REVERSED.THE QUESTION IS HOW?THE ICE LOLLY CAN BE COOLED IN FREEZER,UNTIL IT RE FREEZES.
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MATTER MAY UNDERGO A PHYSICAL CHANGE IF IT GAINS OR LOOSES ENERGY AN ICE LOLLY MELTS IN THE SUN BECAUSE IT GAINS HEAT ENERGY.PHYSICAL CHANGES CAN BE REVERSED.THE QUESTION IS HOW?THE ICE LOLLY CAN BE COOLED IN FREEZER,UNTIL IT RE FREEZES.
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