Matter can be pure or mixed substances
• Pure substances are made up of one
type of atom or molecule.
• Example: Pure gold only has gold
• Mixed substances are made up of
multiple types of molecules.
• Example: Water has H2O molecules and
other types of minerals
• Most of the substances in the world are
Types of Matter
• Matter can be found as elements,
compounds and 2 types of
mixtures, heterogeneous mixtures
and homogeneous mixtures.
• Consists of only one kind of 1.008
• Cannot be broken down into a
simpler type of matter by either
physical or chemical means
• Can exist as either atoms or
• Atoms of two or more different
elements that are bonded
• Can be separated into elements
chemically, but not physically.
• Properties of the elements that
compose a compound are not
• Example: Hydrogen is an explosive gas
and oxygen is a gas that supports
combustion. However water puts out
• Compounds stay the same through
out the substance.
• Two or more substances blended
together; no chemical joining of the
• Can be separated by physical
Two Types of Mixtures
• The substances are not
• Has different properties in
different areas of the mixture.
• Ex: Cookies, Gravel, Soil
• “Hetero”- Different
• Uniform composition all over.
• Even properties spread
throughout a mixture, you
cannot tell one part of the
mixture from another part.
• These are called “solutions”
• Ex: Milk, Kool-Aid, salt water
• “Homo”- Same
How to Classify Matter
Can it be separated by
Mixtures Pure Substances
Is it uniform Can it be separated by
throughout? chemical means?
Yes No Yes No
Homogeneous Homogeneous Compound Element