KELVIN® Geodesic Hot Air Balloon Challenge

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Give your students a lesson in geometry and measurement while they build hot air balloons based on geodesic domes. Balloons are launched using hot air from the updated launcher - great for flying in a gymnasium.

Plans and instructions are included for several different models all created from standard size tissue paper and ranging from 14 inches to over 5 feet tall. Bigger balloons help demonstrate surface area and volume concepts.

The thoroughly illustrated instruction manual includes information on the history of hot air balloons, plus tips for easy construction. Flat panels made up of pentagons and hexagons are easy to assemble and repair.

Comes with: launcher and a balloon starter pack of [5] small, [3] medium and [1] large balloon kits in addition to metal wire, tissue paper, and glue.

Requires scissors for cutting and assembly of balloons. Grades 6-12.