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Physical vs Chemical Change
Physical change can be changed back
Chemical change cannot be changed back
Physical Change
The structure of the changed material remains the same before and after the change.
Examples of Physical Change
Sanding wood and melting ice
Chemical Change
Chemical change is when the composition of a substance is altered or changed.
This is the breaking and forming of chemical bonds during a reaction.
Mixtures
is 2 or more materials that are combined or put together
Examples of Mixture
Sand, salads and soup