Billowing Balloons
1 I put some vinegar in a bottle
2 I rolled the paper like a cone and put the balloon over the end
3 I put 2 teaspoons of baking soda into the balloon
4 I took the cone away and put the balloon over the top of the bottle
5 I lifted up the balloon and the baking soda mixed in with the vinegar
What happened?
The baking soda and vinegar mixed together and made a gas which filled up the balloon. They turned from solid and liquid into gas.
The gas was produced with such force that my balloon blew off the top of the bottle and the gas was gone. So when I put the balloon back on, it only filled up a little bit.
Next time, I will hold on to the balloon so it doesn't fly off the bottle.
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