A complete kit that ingeniously marries science and fun. Features 79 easy, hands-on experiments that probe the worlds of chemistry, physics, biology, geology, weather, the human body and even astronomy. The Pop Bottle is a perfect mini science lab. Each experiment begins with a challenge and ends with an explanation of the scientific principles involved. Children can design a volcano and watch it erupt, create a tornado maker, make quicksand and much more! Turn the bottle into a barometer, a walkie-talkie, a compass, trombone or lava lamp! Includes 128-page guide, plastic pop bottle, measuring cup & spoons, balloons, cork bottle stopper and eye dropper.