____ is an example of a physical change.

In the _____ state, substances have a definite volume and indefinite shape.

Anything that has mass or volume is called _____.

Phase changes are classified as _____ changes.

In the scientific method, _____ is the step in which experimental results are used to decide the validity of each hypothesis.

In the gas state, a substance will have a(n) _____ volume.

In a compound, the elements are _____ together, whereas in a mixture, the substances are blended together.

A taco is a(n):

Milk is a(n):

Copper (II) chloride is a(n):

Pure water is a(n):

Cereal is a(n):

Potassium is a(n):

Dissolving salt is a

Mixing sand and water is a

Rusting iron is a

Boiling water is a

Digestion is a

Melting butter is a