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Transcript of Everything Matters
Physical and chemical changes
Some words you may have not known:
A physical change is a change that you can reverse, for example:
If you turn water into ice, you can change it back to water.
A chemical change is a change that is irreversible, if you have burnt paper you can not change it back. That is called a chemical change.
Video of chemical and physical changes
reversible - you can change back
irreversible - you an change back
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