Margot, J.T., Rayyan & Moises -
"The Blazing Shadow Ring"
Margot's job was being the accountant. J.T.'s job was the constructor. Rayyan's job was the engineer and Moises' job was the measurer. When we were building our roller coaster, we had to use a lot of energy and friction. We used friction to stop the marble at the end of our coaster. Our coaster costed $47.00 to build. Some successes we had were the marble going through the loops. Some difficulties we had were that the marble would not stop at the end. The other difficulty we had was the marble kept flying off the track after the loops. We tried to use a lot of friction using felt circles and sandpaper but it didn't work.