4. Discussion

Special observations 
The last launch only reached a distance of 1.50m while the rest of the launches reach up to 10.00m and more. We suspect that it is because that there was too much paper towel in the bottle so it blocked off the hole that it was suppose to come out of so the launch only reached a distance of 1.50m. We repeated the experiment again to check if we will get the same results and when we repeated the experiment again, we got back the same answer.


Discussion
We have determined that the best ratio of baking soda to vinegar that will result in the furthest distance travelled by the rocket is by using 100 grams of baking soda to 250 milliliters of vinegar which lead to the distance travelled of 18.35 meters but our hypothesis is undetermined as the launch with the ratio stated in the hypothesis had implications as a result, it hindered the possible distance reached by the launch. The paper towels that wrapped the baking soda was blocking the bottle cap hole thus this blocked off the exit which the baking soda and vinegar is suppose to come out of so this hindered the possible distance reached by the rocket.

Areas for improvement 

We could have saved more funds or used the extra materials properly and fix the launch mechanism completely before doing so many failed attempts and wasting resources. Also we should have chosen a better launch site as the one we used had too many obstructions for an accurate measurement and there was a road nearby so one of the rockets landed onto the road and a car ran over it. 


Practical Applications 
It helps you to see how dangerous chemical reaction can be. This experiment can also help show how much force is needed to launch a rocket the furthest as there are many factors that will affect the distance travelled by the rocket such as the weight and the force of the chemical reaction of the fuel that will launch the rocket the furthest. If we can make the perfect combination to overcome weight and to have the strongest pressure build up by the rocket, the distance that the rocket will travel will be the furthest.


Areas for further study
For areas of further studies, we can experiment on what kind of material would be the 
best to block the bottle cap hole so that the baking soda and vinegar reaction in the bottle will build up to the highest amount of pressure and be released. When we first launched the rocket, we were using a balloon to cover the bottle cap hole to hold the pressure of the baking soda to vinegar chemical reaction but the balloon was not strong enough so the baking soda and vinegar leaked out of the bottle and did not launched the bottle forward. Afterwards, we used a cork to block the bottle cap hole so that the pressure could be builded up inside of the rocket and then, it will be released and launched. This is why we would like to test the best kind of material to help block the bottle cap hole to build up the pressure of the baking soda and vinegar reaction so that the bottle will be launched the furthest.