At home after school I done an experiment with Baking soda, Citric Acid and White Vinegar. First I thought I could do Baking soda and citric acid but nothing happened but then I thought why couldn't I add white vinegar. When I poured the vinegar into the cup it started to fizz and it lasted a very long time it bubbled right to the top. First I added the baking soda and then I added the citric acid and I mixed it then I added the Vinegar and I stood back so I wouldn't get over my uniform. Warnings: Don't get the vinegar in your eyes other wise it will sting. I used about half a cup of white vinegar a teaspoon of baking soda and a teaspoon of citric acid.