Poping fun

In science class we took vinegar, baking soda, test tubes, and a cork to see if we can use it to hit the window on the other side of the class room. We put the vinegar in the test tube with the baking soda then put the cork on. There was no set ammount of vinegar or baking soda so we had to figure it out. The ratio we used was 1 to 5. 1ml of baking soda for every 5ml of vinegar. Later on we also figured out that baking soda on the cork helps with the holes on the cork where the c02 gases can escape. We never hit the window but we tried if we had one more try we would have had it.