How can I make a mini Roller Coaster, that's fuctional?

ok in science class we have to make a mini roller coaster. it must have two loops and the tubes must be open from the top..what do u think i should make the loops out of>??

i have to make a roller coaster that has to have the second hill higher than the first, then add two or so more hills that are any height. then at the end, what ever im using for the vehicle for the roller coaster it must slowly come to a stop and not...

Im think about getting a spinny hair thing one of those office chairs and putting a seat belt on it and charging people $5 for a ride thats about 1 minute. Will that work?

I just got back from Orlando, the reason why Disney and Universal are such good places for theme parks is because all the rides are so different. Disney was AMAZING!! and so was Universal, however, Busch gardens, which is only roller coasters and animals...

okay im going to disney next week and im a little scared of roller coasters. the one thing that scares me is dropping.. does rock n roller coast do any large drops??? i dont mind going upside down much if u cant tell and i heard u cant tell in this ride...

so, later on next month, we're gonna be going to carowinds, and my brothers are always bugging me to get on a rollercoaster, as ive never been on one.. and im about to be 17, so id assume its about that time. well, theres a roller coaster there called...

I have a mini roller coaster project due in algebra.. I have everything but the materials:/ I was thinking of making it out of toothpicks and something else.. That something else should be moldable(: It doesn't have to work or run or anything, it's a...

so im pretty annoyed with myself i was absolutely terrified of roller coasters now not so much theres a lot of rides at six flags i will go on but heres the annoying part i wont go on the big ones i go on like the middle ground to tame ones like the...