Each group needs:

• 40 Popsicle sticks
• 30 half-inch cube blocks; such as a bag of 100 half-inch blocks for $5 from Woodworks Ltd.
• long water channel, about 3-feet long; for example, use long, plastic hot wheels tracks or premade wooden channels and hot glue to connect the channels; length is up to the teacher, but 3 feet is a good starting point
• laser pointer
• yardstick
• 12-inch ruler
• calculators
• paper and pencils
• hot glue gun and glue sticks
• 1 wooden baseboard that is 6-12 inches wide x the water channel length
• measuring cup and water, to carry water that is poured into the aqueduct
• cup or bucket, to catch water at the end of the aqueduct
• Arch Calculations Worksheet, one per group
• How to Build an Arch Handout, one per group
• (optional) plastic bag or box, in which to contain each group’s materials, for easy distribution