Each group needs:

• Popsicle sticks, ~150
• hot glue gun and glue sticks
• foam-core board base, 6.5 x 6.5 inch (16.5 x 16.5 cm)
• washers, coins or similar small objects (to use as weights)
• small paper cup (to hold weights)
• string (to hang cup from end of crane), ~1 ft (~30 cm)
• Static Problems Worksheet, one per student
• Competition Requirements
• (optional) Survey, one per student

For the entire class to share:

• textbook (or other weighty object) for the teacher torque demonstration described in the Introduction/Motivation section
• a counterweight made from: a small paper cup; washers, coins or similar objects (to use as weights); and string (~1 ft or ~30 cm) (see instructions in Procedure section)
• meter stick (to measure deflection of cranes at the end)
• three-bar balance (or any balance or scale)
• (optional) prize for winning team, such as lollipops or candy