Demonstrate the concept of surface tension to students by examining how a pin can be inserted into a bubble without popping it. Start by blowing a bubble with a bubble wand and bubble solution, then catch the bubble onto a wet dish.
In order for the pin to be inserted without popping the bubble, it must be covered in bubble solution so that the surface tension is not disrupted. Dip the pin into bubble solution, then slowly insert it into the bubble. The bubble will remain intact.
Making frozen bubbles demonstrates how a liquid changes to a solid if the temperature is low enough. In order to make frozen bubbles, the outside temperature must be lower than 10 degrees Fahrenheit. Simply blow bubbles into the air with a bubble wand and bubble solution. The bubbles will freeze instantly, and will fall to the ground as bubble ice.
Use colored bubbles to demonstrate to students that a popped bubble can create a pattern. Pour 1/4 cup of acrylic paint into 3 cups of bubble solution, mixing it well. Blow the colored bubbles into the air, and catch them on white printing paper. Once the bubbles pop on the paper, they will create a natural pattern with the acrylic paint. Create different colors of bubble solution to make multicolored paintings.