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Today we went to Baradene College for a science Roadshow. So we started the Roadshow with the Physical and Chemical changes. The Physical change is when you put paper on fire. The Chemical change is when you rip bits to the paper. This because when you put the paper on fire, and the bit of paper that you've set on fire it despairs. That is why it's called a Physical change. The Chemical change is when you rip a bit of paper you can still see the paper.
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