Physical and Chemical Changes
If you read this you won't have to do the lesson!
A Chemical Change is....
A chemical change is the change of when a new substance forms from other chemicals. For example, iron rusting, gasoline burning, and wood burning. You can tell when something completely different forms form two different substances like pure sodium and water make a explosion.
A Physical Change is....
A physical change is a change NOT involving it's chemical identity. For example, ice melting, glass shattering, and water evaporating. You can tell if it is still the same, just in a different form than what we are used to. We can go through physical change when we get taller.
Chemical and physical change are actually very different. Physical change is when something changes form but doesn't change it's chemical identity, while chemical change is when a change turns the substance in a entirely new substance.
Physical & Chemical Changes