50ft Solar Balloon

Giant-sized solar science fun. This foot long balloon soars high in the sky powered by the sun. Demonstrates buoyancy, convection, thermodynamics and solar power. Teaches Bernoulli’s Principle and Pascal’s Principle. Great for science classes and the perfect start to a science project. Bright direct sunlight on a calm, cool day has the Solar Balloon soaring in just minutes. Includes one foot long by 29″ diameter Solar Balloon, 400 feet of string, complete instructions and science learning guide. Made in USA. For ages 14