1. 8.1 The Nature of Matter

2. Matter
Matter is a term used to describe anything that has mass and takes up space.
Is a sugar cube a single piece of matter?

3. Elements
An element cannot be broken down into another substance by chemical or physical means.

4. Atoms
An atom is the smallest particle that retains the chemical identity of an element.

5. Molecules and Compounds
Molecule: two or more atoms joined together chemically
Example: oxygen gas (O2)
Compound: two or more different atoms joined together chemically
Example: water (H2O)

6. Mixtures
Mixture: matter that contains a combination of different elements and/or compounds
Are the following examples of an element, a compound, or a mixture? A B C

7. Classifying Matter Matter Pure substance Mixture Element Compound
cannot be separated by physical means
Mixture
can be physically separated
Element
Compound
Homogeneous mixture
Heterogeneous mixture

8. Matter Check! All matter is made up of __________.
The two main types of matter are __________ and __________.
Classify the following as an element, a compound, or a mixture:
a. helium
b. olive oil
c. air
d. vitamin C