Natalie Moon

Phisical And Chemical Changes

Physical Change

A physical change is where the physical propety of a sbstance changes but the identity doesnt change. For instance heres an exsample: Chopping a pencil in half would be a full pencil to a slit in half pencil.

Chemial Change

A chemical change is where the characteristics of a substance can be observed or measured without changing the identity of the material.Heres an exsample: like color and shape or lenth and mass.Like burning wood or a log would be a chemical change.