In this Science Project we selected three different brands for sodas. The three brands were, Coca-Cola, Pepsi, and 7-Select. What we wanted to find out out of all these sodas was which one was the best. We were able to find out which one was the best with four different tests. We did a price comparison test, a test to find out how corrosive it is, a test to find out how much gas it has, and a test to find out how hard it is to clean off of clothes. With these four tests, we figured out wich one was the most important and which one was the least important. With that and the score we gave each soda for each test, we were able to find out which soda is the best to buy out of those three.