Mixtures Notes

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Physical

Properties
of Matter

Physical Properties

•

Characteristics that can be observed or measured
without changing the composition of a substance

•

Help to distinguish between pure substances,
homogeneous mixtures, and heterogeneous mixtures

Examples of Physical Properties

Mass

Volume

State of Matter

Density

Conductivity

Solubility

Magnetism

Luster

Malleable

Pure Substances

•Made up of only one type of particle

•Have a definite composition and a distinct set of
physical and chemical properties

•Classified as elements or compounds

Salt

Sugar

Water

Homogeneous Mixtures

•Mixtures that have a uniform composition and the
same properties throughout

•Components are evenly distributed

Soda

Brass

Lemonade

Heterogeneous Mixtures

•Mixtures made of different substances that
remain physically separate

•Not uniform in composition and not evenly
distributed

Pizza

Cereal

Salad

Mass

• The amount of matter in an object

• Matter is anything that has mass and takes up

space

• Base unit: gram (g)

• Tools: triple beam balance

Volume

• The amount of space an object takes up

• Base unit: liter (L)

• Tools: graduated cylinder

Magnetism

• The ability of an object to push or pull on

another object that has magnetic properties

• Magnets have two poles – North and South

• Opposite poles attract

• Same poles repel

• Magnetism is greater at poles

• The needle of a compass moves because of

Earth’s magnetism

Relative Density

• Sinking and floating using water as a reference

point

• Liquids or objects with a lower density than

water will float in water

• Liquids or objects with a higher density than

water will sink in water

Solubility

•

The process in which a
solute dissolves in a solvent
in order to form a solution

•

Solute – a substance that is
dissolved in a solvent

•

Solvent – a substance that
dissolves a solute

•

Solution – a liquid,
homogeneous mixture of
one or more solutes
dissolved in a solvent

Conductors and

Insulators

Insulators

•

Do not allow energy to
flow through easily

•

Examples: wooden
spoon, rubber eraser,
paper

Conductors

•

Allow energy to flow
through easily

•

Examples: penny, copper
wire, frying pan

Checkpoint

• 5 checkpoint questions

• Discuss each question with a partner

• Write a complete answer to each

question on your notes page

Question 1

List three

different physical

properties of

matter.

Question 2

What is a pure
substance? List

an example.

Question 3

What is a

homogeneous

mixture? List an

example.

Question 4

What is a

heterogeneous
mixture? List an

example.

Question 5

Describe how physical

properties of matter can

help you distinguish

between pure substances,

homogeneous mixtures,

and heterogeneous

mixtures.