Production of carbon dioxide from reaction of citric acid and baking soda ...

A wily Japanese tactic in World War II was to launch balloons carrying small explosive or incendiary bombs in the hope that they would drift across the Pacific and land in the U.S. Some of them ...

This step is crucial as it sets up the main reaction in this balloon science experiment for kids. Now, add a spoonful of ...

Cracker question because helium balloons are actually a pretty controversial topic. Some people argue that they are harmful to the environment because on returning to Earth, animals mistake them ...

They experiment with two ways that vehicles may be driven - energy directly applied to the axle with a wind-up rubber band, and energy that is separate from the axle using balloon-powered propulsion.