?
I can classify matter by giving
examples of pure substances
and mixtures. (suspension,
colloid, mechanical mixture,
solution, compound, element)

A study of matter, its properties (how it
reacts, how it’s made up) and its changes and
transformations.

Is anything that has mass and takes up space.
Classification of Matter
All matter
Pure substances
Mixtures
- Contains two or more
pure substances
- contain only one type of
particle
- can exist in three states of
matter: solid, liquid and gas
Suspension
Colloid
Elements
Compounds
Mechanical
Mixture
Solution

PURE SUBSTANCE:
◦ Is made up of one type of particle
◦ Has a unique set of characteristics or properties
◦ Cannot be physically separated into different
substances
◦ Example: water (H2O), diamond, gold, table salt
◦ 2 Categories:
 Elements
 Compounds
Elements
Cannot be broken into
simpler substances.
Contains only one type
of atom.

Ex: Hydrogen (H)
Carbon (C)
All elements are found
on the periodic table.

Elements from the
Periodic Table
◦
◦
◦
◦
◦
Gold
Copper
Helium
Hydrogen
Oxygen

Contains two or more
elements in a fixed
proportion.

Identified by chemical
formulas.

Ex: Water (H2O
Carbon Dioxide (CO2)



Is two or more pure
substances combined
together
Can be physically
separated
Each substance keeps
its properties, but it
may be difficult to
identify them


Salad
Toothpaste

Ham and Cheese
Sandwich

Can NOT see the
different parts.
Ex: saltwater
pop
Homogenous

Can see the different
parts.
Ex: oil and water
salt and pepper
Heterogenous


Looks as if it is all one
substance
Homogeneous mixture

Examples:


can see the different
substances that make
up the mixture
Heterogeneous

Examples:
◦
◦
◦
◦
sand
Chocolate Chip Cookies
Cereal and milk
pizza


The components are in
different states.
Ex – Solid and Liquid

Examples:
◦ Blood
◦ Italian Dressing
◦ Mud (dirt and water)


The suspended
substance cannot be
easily separated from
the other substance.
Can’t see particles, but
they can be settled out

Examples:
◦ Milk
◦ Cornstarch and water
◦ Fog


SUSPENSION – you can stir/shake particles
together but if you let it sit the larger
molecules will eventually settle out
Example – when you make chocolate milk
with syrup


COLLOID – think of it as a permanent
suspension. When you mix the 2
components they stay mixed in.
Example – Jello, Fog (water molecules inside
air)

Solution – particles are fully dissolved – looks as if
it is all one

Colloid – suspended substance cannot be
separated from the other substance – can’t see the
particles


The Tyndall effect, also known as Tyndall
scattering, is light scattering by particles in a
colloid or particles in a fine suspension. It is
named after the 19th-century physicist
JohnTyndall.
The particles scatter and reflect the light
making the light visible.
If you shine a light through a solution and a
colloid you can tell the difference.
Solution – the light will shine through but you
will not be able to see the light in the solution.
Colloid – the light will shrine through and you
will see the light in the colloid
I can classify matter by
giving examples of pure
substances and mixtures.
(suspension, colloid,
mechanical mixture,
solution, compound,
element)