Classify the following as chemical or physical changes:

• cutting of trees,
• melting of butter in a pan,
• rusting of almirah,
• boiling of water to form steam,
• passing of electric current, through water and the water breaking down into hydrogen and oxygen gases,
• dissolving common salt in water,
• making a fruit salad with raw fruits, and
• burning of paper and wood.

NCERT Class 9th Science Ch 2 Is Matter Around Us Pure

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Answers

2016-04-19T18:34:34+05:30
1.physical change
2.physical change
3.chemical change
4.physical change
5chemical change
6.physical change
7.physical 
8 chemical
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