Each group needs:

• 2-meter (6 foot) long foam tube (1/2" pipe insulation) cut in half lengthwise (Usually, one side of the tube comes perforated, making it easy to use scissors or a utility knife to cut through the perforation and the other side of the tube to form two halves, essentially making two long channels perfectly shaped to hold marbles; thus, one cut tube provides the track material for two groups; see Figures 1 and 2.)
• glass marble
• wooden marble
• steel marble
• paper or plastic cup
• roll of masking tape
• set of markers, crayons or pencils
• blank sheet of paper
• stopwatch
• Roller Coaster Specifications Worksheet, one per student or one per group
• Suggested Scoring Rubric, one per group