Chemistry: Chemical and Physical Changes

When matter changes physical states

Can be reversed, like sorting a bag of Skittles

Change where nothing new is made

Ice can change to water, and water can change to ice

Cutting, bending, melting, dissolving, mixing,

A chemical change occurs when two or more materials are combined to make a brand new substance

That change CANNOT be reversed

Lemon and Baking soda, for example

There can be changes in odor, color, heat,

When you burn wood for a camp fire, you can't "unburn" the wood