How can physical

properties be used to identify

matter?

Matter

Everything around us that has:

Mass Volumeand

ExampleTable, chair, board, water , juice, air, bottle, pencil case.

Mass

Is the amount of matter in an object.

Tool for measuring mass.

Digital balance

Two pan balance

Units for measuring mass.

Gram (g)

Kilogram (Kg)

Metric

syste

m

Volume

Amount of space an object takes.

Tool for measuring volume.

(For liquids)

Graduated cylinder

Units for measuring volume.

Milliliter (ml)

Liter (L)

Metric

syste

m

Mass Volume

and

are called

Physical properties

(Something you can observe or measure)

Density

Density

= MassVolu

me

Units for measuring density.

For liquids

g/ml

Kg/ml

Kg/ml

g/l

Units for measuring density.

For solids

g/cm3

Kg/cm3

Kg/m3

g/m3

Calculating density.Example 1

A wooden block has a mass of 20 g. Its volume is 10 cm3. What is the density of the wooden block?Density

=Mass

Volume= 20

g

10

cm3

= 2 g/cm3

Example 2

A green ball has a mass of 100 g and a volume of 200 cm3. What is the density of the green ball?

Density

=Mass

Volume

= 100

g

200

cm3= ½g/

cm3

Example 3

A yellow ball has a mass of 50 g and a volume of 10 cm3. What is the density of the yellow ball?

Density

=Mass

Volume

= 50

g

10

cm3= 5 g/

cm3

Other physical properties

Color

Shape

TextureState

Ability to transfer heatAbility to conduct electricity