20 to 30 minutes
Materials
Rubber bandsBalloonsflashlight
Directions Extensions
By adding different balloon filters, you can make a variety of secondary colors. Try combining red and yellow or blue and yellow.If you have several flashlights, you can shine the colors on the wall and do the color mixing there.Use 3 flashlights and 3 different colored balloons. Hold them inside a paper grocery bag with holes cut in the bottom. Aim the holes at the ceiling and move the flashlights inside to create a rainbowlike dance of light and color.