Bouncy balls rebound in response to the amount of force used when they contact hard surfaces. That simply means that a bouncy ball will bounce back at you with about 80 percent of the energy you used .
This DIY recipe for Kinetic Sand only takes 3 ingredients, and costs about a third of what commercial brands of Kinetic Sand retails for. Kids love sensory play like this, and will occupy them for hours. See how to make your own Kinetic Sand here!
Remember a summer forever by creating this wonderful seashell craft. Plaster of paris, aluminum pie tin, and shells. Great idea for "stepping stones" in a garden if you use cement instead of plaster of paris - you can color the cement as well.