Blowing up a balloon

Today Room 18 blew up a balloon without using our mouths.

We used vinegar, baking soda and a bottle to blow up our balloon.

We put some vinegar into the bottle and some baking soda into the balloon.

Then we put the balloon on top.

We shook the bottle and the balloon slowly blew up!

We were excited!

The vinegar and the baking soda made lots of little air bubbles. They blew up the balloon for us!

By Room 18.