OBJECTIVE:
Using what you know about solutions make a better bubble.

BACKGROUND:
When making solutions the amounts of the components can be varied.  When a solution is in equilibrium (in balance) no additional added solid solute will dissolve, this is called a saturated solution.  For example, a cup of water at room temperature will dissolve a certain amount of salt to a point that no more salt will dissolve.  If this point of "saturation" has not been met, the solution is said to be unsaturated. 

Students will prepare "bubble" solutions by combining various mixtures of ingredients and varying the saturation levels of the solutions.  The goal is to find the solution that results in the best bubble. 

This activity is best conducted outdoors since it involves the use of water.  If conducted indoors, be sure to lay paper towels on the floor to prevent any falls.

PROCEDURE:
Have students predetermine the ingredients and amounts to be used in the first trial solution of the lab and have them record the data on the chart.  Have students make the first trial solution using the recorded data and test it.  Using their first solution as a basis, have them continue the process until they've completed all four trials.  Once students complete lab, ask a few students what solution worked best for them and record data on chalkboard.  As a class, determine which key factors make for a good bubble solution (the substances used, the amounts, whether the solution was saturated or unsaturated, etc.)