ROCK FALLS, Ill. (AP) - No angles went uninspected. All funnels were fully affixed. Loop-de-loops were secured. Meanwhile, students put the finishing creative touches on their roller-coasters Jan. 6 ...
Roller coasters are fun, fast, and are a great example of physics in action. Your challenge is to build a roller coaster out of materials you can find in your home. Cut a piece of printer or ...
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