A great way to demonstrate basic principles of Newton's Laws of rocketry to students. In order for a rocket to be stable the center of gravity must be forward of the center of pressure. Balloons are inherently unstable which is why they swirl around in every direction when you allow the air to escape. Rocket balloons are properly weighted to show stability. We made a real hit with these at the NSTA National Convention in St. Louis sending them to the roof of the convention center. For safety and hygiene, each package of 85 or 40 Rocket Balloons includes a pump so there is no need for the balloons to contact the mouth. WARNING: CHOKING HAZARD -
Children under 8 can choke or suffocate on uninflated or broken balloons. Adult supervision required. Keep uninflated balloons from children. Discard broken balloons at once. Check your organization's policy regarding balloons.