The Incredible Vacuum Chamber - DIY Science Kit With 20+ Experiments - Learn about what happens in a low-pressure environment. The results will surprise and delight! Enter the fascinating world of vacuum chamber science. Young scientists will explore the principles of physics and chemistry with this home sized vacuum chamber. Unlock the mysteries of air pressure: the air extraction tube in the vacuum bell introduces young scientists to the amazing world of low-pressure science. Includes 20 mind-blowing experiments, including; what happens to a balloon inside the chamber, make marshmallows expand and even boil water at room temperature! Fun and science combine! Our vacuum chamber kit will become an instant hit! CHOKING HAZARD! Children under 8 years can choke or suffocate on uninflated or broken balloons. Adult supervision required. Keep uninflated balloons away from children. Discard broken balloons at once.