Magic Balloon

This morning we did another science experiment, and this one was really fun for the kids! It used baking soda and vinegar, which we've done before, but this time we got to see the results of the reaction in a different way.

You'll need:
a small water bottle, empty and rinsed out
a latex balloon (standard size)
a funnel
4 tbsp of vinegar
2 tbsp baking soda

Pour the vinegar into the bottle, and use the funnel to spoon the baking soda into the balloon.

Hold the balloon so that the baking soda doesn't spill into the bottle, and stretch the opening of the balloon to fit over the neck of the bottle.

Slowly straighten out the balloon and tip it upside down so that the baking soda falls into the vinegar in the bottle.



Both Oliver and Buttercup liked this experiment a lot. We'd mixed baking soda and vinegar together before, but this time it was more fun since they got to see the balloon filling up with carbon dioxide from the reaction. I do want to try this one again sometime, after I buy more baking soda (mine is pretty old!). I think it would be more impressive with fresh ingredients. :-)