I used a rubber band to secure the tissue to the glass tube, and then carefully pushed the cork into the mouth of the bottle. I made sure the glass tube was in the tissue so that when the vinegar came into contact with the baking soda, it would make a chemical reaction. Now, I was ready for the real test. Shaking the bottle causes the baking soda and vinegar to mix. This produces a chemical reaction in which carbon dioxide gas is created-the same gas that puts out fires.
Carbon dioxide puts out fires by depriving the flame of oxygen.
The experiment was successful because I followed the directions and worked carefully. It is important to do this with adult supervision. Here's an essay that shows development of understanding of one of the big ideas of science. Of the many experiments that we do in my science class, the most interesting one was where we proved that molecules exist. First we took a beaker and filled it with iodine.