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Physical changes MeltingChocolate, butter, ice EvaporationSweating, clothes drying CondensationRain, dew FreezingWater Change in shape or sizeRubber band,

Published byKristina Evangeline Hancock Modified over 9 years ago

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Presentation on theme: "Physical changes MeltingChocolate, butter, ice EvaporationSweating, clothes drying CondensationRain, dew FreezingWater Change in shape or sizeRubber band,"— Presentation transcript:

1 Physical changes MeltingChocolate, butter, ice EvaporationSweating, clothes drying CondensationRain, dew FreezingWater Change in shape or sizeRubber band, balloon

2 Chemical reactions When a chemical change occurs, new substances are produced Burning of paper Boiling an egg Decaying of teeth Batteries Fuel in car

3 How does a candle burn? When you light the wick of a candle, the wax at the top of the candle melts. The molten wax is drawn up the wick. As the liquid wax flows up the wick and gets closer to the heat of the flame, it evaporates. The wax vapour mixes with the oxygen in the air and burns.

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