A. We were trying to keep hot water in a mug stay hot for as long as possible.

B. The first time we tested our design the lid was letting a lot of air into the cup, then we tested it a second time and we also made a lid that covered more of the top of the cup.

C. C- We learned that when your lid for your cup covers the whole top it works a lot better.

E- The first time we tested our cup warmer it was at 75.8 and then the second time we did it when we had a better lid it was 81.6.

R- This happened because the first time we tested it our lid wasn’t so good, but we upgraded our lid to cover almost the entire top of the mug so that not as much air got into the mug.

D.

-I’m proud that our test the second time was a lot better than the first one.

-If I could do something differently it would be to have a more secure lid for the mug.