Super Scientist John Ryan taught Mrs. C’s class how to blow up a balloon with carbon dioxide. John Ryan poured 40ml of water into a bottle and added a teaspoon of baking soda. He shook the bottle until the soda dissolved. Then, he poured in some lemon juice and quickly put a balloon over the mouth of the bottle. He shook the bottle again, and the balloon inflated!!! The lemon juice and baking soda combine in the water to create carbon dioxide. The gas rises and fills the balloon! Great job, Super Scientist John Ryan!