1. Concentration of solutions

2. Solution
A solution: A solution is a homogenous mixture of two or more substances.
Review what a solution is. Ask students for multiple examples. 2

3. Saturated solution
Saturated solution: A solution is saturated when the solvent can no longer dissolve the solute.
Example: Adding sugar to water until the point that there is too much sugar and it does not fully dissolve in the water anymore. 3

4. Unsaturated solution
Unsaturated Solution: A solution is considered unsaturated if the solute can still be dissolved.
The solution could still have more salt added. 4

5. Diluted solution
A diluted solution : A solution that contains relatively little solutes.
For example jus with too much water. 5

6. Concentrated solution
Concentrated solution : A solution that contains a large amount of solutes.
Concentrated juice for example. 6

7. Solubility
Solubility: The maximum concentration that a solution can have at a given time.

8. The rate of dissolving
The rate of dissolving: The rate of dissolving is the measure of the speed of which something is produced.
Stirring something really fast or really slow for example. 8

9. Stirring
Stirring: The action of stirring or mixing the mixture. You are stirring something when you are making a mixture turn in the container.
Stirring a mixture for example. 9