There are three main ways to classify matter: elements, compounds, and mixtures. Elements are substances that cannot be broken down further, examples include anything on the periodic table. Compounds are substances made of two or more elements bonded together in a fixed ratio, such as NaCl or CO2. Mixtures are combinations of elements or compounds that can be combined in any ratio, and can be either homogeneous, where the composition is uniform throughout, or heterogeneous, where the composition varies. Common examples of each are provided.

1. Matter – Part 1Matter – Part 1

2. What are some
different ways to
classify matter?

3. In Chemistry one way we useIn Chemistry one way we use
isis::
Elements
Compounds
Mixtures

4. Element - a substance
that cannot be broken
down by chemical
methods
Examples- anything on
the periodic table

5. Compound - a
substance composed
of two or more
elements bonded
together, always in the
same ratio

6. Law of Definite
Proportions - a
chemical compound
always has the same
ratio of elements (by
how many and their
mass) ex. H2O has 2 hydrogen
1 oxygen

7. Examples of compounds:Examples of compounds:
Salt (NaCl)
Sugar (C6H12O6)
Carbon dioxide (CO2)
Dinitrogen monoxide (N2O)

8. Compounds can be
broken down into
elements by chemical
methods (breaking
bonds)

9. Substance (or pure
substance) -
has the same
composition, must be
either a pure element
or a pure compound

10. Mixture - a combination
of two or more
substances (elements or
compounds), can be
combined in any ratio
(variable composition)

11. Two types of mixtures:

12. Homogeneous Mixture
or Solution -
always the same
throughout, no matter
where you take a
sample

13. Examples -
salt water, air, alloys,
soda
Note - Solutions don’t
have to be liquids!

14. Heterogeneous
Mixture - contains
parts that have
different properties
and composition

15. Examples -
Pizza, ice cream
sundaes, sand and
water

16. Label the Following as elements,Label the Following as elements,
compounds, homogeneous mixturescompounds, homogeneous mixtures
or heterogeneous mixturesor heterogeneous mixturesBlood
Pizza
Steel
Diamond
Carbon monoxide
Neon
Chili
Ammonia
Nitric acid
Gatorade
Heterogeneous mixture
Heterogeneous mixture
Homogeneous mixture
Element
Compound
Element
Heterogeneous mixture
Compound
Compound
Homogeneous mixture