PHYSICAL PROPERTIES

Physical Science

Chapter 1.2

Objectives:

1. Identify six examples of physical properties of matter.

2. Describe how density is used to identify substances.

3. List six examples of physical changes.

4. Explain what happens to matter during a physical change.

Physical PropertiesCan be observed or measured without changing

the matter’s identity.

Identifying MatterYou use physical properties to identify matter.

Density amount of matter in a given space, or volume.

○ The two balls below have different densities.

Liquid Layers○ This graduated cylinder contains six liquids. ○ Each liquid is a different density so the liquids form

layers.

Density of SolidsKnowing the density of a substance can also tell

you what kind of substance it is.

Solving for DensityTo find an objects density (D),first measure its mass (m)and volume (V).Then use the following equation:

D = m/V

Using Density to Identify SubstancesLook at the table below to compare densities of

several common substances.

Physical Changes Do Not Form New Substances