Cork to a Window

Today in class we had to do a project where we measure amounts of vinegar and baking soda. Our group did not touch the window but we got a few centimeters away only if we shot it higher. We were given a box a of baking soda and a beaker of vinegar. Our tries varied, we just couldn't get the amounts right. We were told to find the exact amount of vinegar and baking soda that will shoot our cork from one side of the room to another. We have another day to do this but it will still be difficult. More then one try is available so there will be many chances to get this correct. I think that this lab can help our problem solving and measurement skills. It is also a really fun project, we learn and have fun. Just what kids need.