This quarter Mrs. Banister's class has been learning about Chemical and Physical Reactions in Science. On Friday, they mixed vinegar and baking soda together to create a Chemical Reaction which in turn created Carbon Dioxide gas. This gas inflated the balloons that were attached to the water bottles. Because this created a gas, they knew that the molecules inside the balloons were spread far apart and were bouncing off one another.
The class thought it was a blast!