Materials
1 two-liter bottle (rinsed clean)
1 big balloon (empty)
vinegar
baking soda
funnel
Directions
Fill two-liter halfway with vinegar
Fill balloon halfway with baking soda using funnel
Carefully place lip of balloon over top of bottle
Lift balloon so that a little baking soda falls into bottle (do not dump all baking soda in)
The balloon should start filling with the gas created by the baking soda & vinegar. As balloon fills with gas, it will release the rest of the baking soda into bottle.
Gas Experiment
