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Physical and chemical?

Asked by boys_inter 9 months ago, 3 answers.

how can we recognize physical and chemical changes (for science lab please help!)

Answered by carebearfairies on Feb 14, 2009, 08:57AM
289 answers

chemical change has to do with colour, odour, any smoke or changes to it, physical is a change in which no new substance is formed the change can be in shape, form or state, no change in composition

1 person thought this was helpful

Answered by boys_inter on Feb 14, 2009, 10:07AM
67 answers

perfect thank you!

Answered by hello_amy on Feb 18, 2009, 05:51PM
33 answers

an example of a physical change would be like if you cut a piece of paper in half, because you can physically change it back by taping it or whatever. if it were a chemical change, you could do something like burn half of the paper off. you can't chemically change it back to its original state.