State whether the following are physical or chemical changes. 1. glowing of a bulb 2. burning of sugar
State whether the following are physical or chemical changes.
1. glowing of a bulb
2. burning of sugar
3. heating of water
4. growing of a piglet into a pig
5. burning of wood
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1 Answers
1. physical change
2.chemical change
3. physical change
4.chemical change
5.chemical change
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