1. Elements, Compounds & Mixtures

2. Matter
Mixtures
Pure substance
Elements
Compounds
Multiple
substances

3. Types of pure substances
Elements
Compound
Simplest, pure substance,
One type of atom present
Can’t be broken down.
Represented by symbols.
Example: Na-Sodium Fe-Iron
2 or more elements chemically combined.
Represented by chemical formulas.
Unique properties that are different from the elements that make it.
Example: Water H2O

4. Types of Mixtures Mixtures
1. Made of more than one kind of pure substance.
2. Can be separated or pulled apart physically ( they aren’t chemically combined)
3. 2 types:
Heterogeneous
Homogeneous

5. Describe in a T-Chart
Pure substances
Mixtures

6. Heterogeneous Mixtures
1. Not the same throughout.
2. Large easily seen particles that can be separated out.
3. Heterogeneous liquid mixtures are also known as suspensions.
Settles after standing.
Examples: salad, Italian dressing,

7. Homogeneous Mixtures Homogeneous Mixtures 1. Appears same throughout
2. Well mixed
3. Will not completely settle upon standing,
4. Tiny unrecognizable particles
5. Homogenous mixtures are also called Solutions.
Examples: Kool-aid

8. molecule: a group of atoms that are held together by chemical forces
molecule: a group of atoms that are held together by chemical forces. Atoms that make up a molecule act as a unit.

10. Element, Compound, Molecule or Mixture? Use the following choices:
A=element
B=compound
C=mixture
D= mixture of elements
F= mixture of compounds
G=mixture of elements & molecules

11. Make a T-Chart to compare and contrast the two types of mixtures
Homogeneous Mixture
Heterogeneous mixture

14. Suspensions
(Heterogeneous
Mixtures)

15. Solutions

17. Mixture Question?
What is the difference between a heterogeneous and homogeneous mixture?

20. Graphic Organizer
Create a graphic organizer to show the relationship between the following terms:
elements
compounds
homogeneous mixtures
heterogeneous mixtures
suspensions
colloids
solutions