A change to the physical properties of a substance, like a change in size.

When the color, smell, and taste of the mixture changed, I knew a chemical ___ had taken place.

Ciara's bike has rusted, which means that the iron in the metal changed to rust. What has occurred?

What is the process that changes one set of chemicals into another set of chemicals?

Which of the following physical changes shows a change in a substance's state of matter?

A physical change _____ change the composition or identity of the substance.

Label each of the following as either a physical process or a chemical process: c. pulverizing an aspirin

Label each of the following as either a physical process or a chemical process: b. boiling a cup of water