Science Week in 5A

First we got an empty bottle and then we filled one third of the bottle with vinegar. Then we got a balloon and put baking soda into the balloon with a funnel. We then put the balloon onto the bottle of vinegar and tipped the balloon so that the soda fell in. A fizz then arose and made the balloon inflate. This happened because of a chemical reaction. The chemical reaction was caused from mixing an acid and a base. In this case the acid was vinegar and the base was the baking soda. Together they made carbon dioxide which is a gas. The carbon dioxide also known as CO2 was trying to escape the bottle but instead because the balloon was held on it inflated the balloon. 

Georgia G

This science week my class and I did an experiment. We had an empty bottle with vinegar inside. We then put bicarb soda into a balloon with a funnel and attached the balloon to the bottle. Once we did these steps the balloon started to blow up. This was because the gas in the bottle tries to leave the bottle. It then goes up into the balloon. Because the gas is now in the balloon it makes the balloon inflate.

Ines B