Here follow my instructions for the balloon experiment. Is it possible to fill up a balloon without inflating it yourself? What happens if you mix two substances with each other? How can you get a more powerful reaction?
Remember to start the experiment with a hypothesis, what do you think will happen?
Instructions for parents: Read this first.
When baking soda is mixed with water and/or vinegar, the gas forms carbon hydroxide. A simple chemical reaction occurs and it starts bubbling. Gas takes much more space than liquid, which increases the pressure in the plastic bottle. The pressure blows up the balloon. To get an even more powerful reaction, water is replaced with vinegar.
Both baking soda and vinegar are harmless, but you should avoid getting any of it in your eyes.
To see others do the experiment look at this video:
Do you have any questions or comments about the experiment? Just leave a comment below!
Click the link to get back to my Kids Christmas Calendar.