Each group needs:

• 2 wooden blocks
• 1 thin strip of metal banding (8-inches long)
• 1 protractor
• 4 long nails (or a C-clamp, or duct tape)
• 1 small nail
• 1 cotton ball
• 1 hammer
• tape measure or meter stick
• Newton's Second Law – Catapult Worksheet, one per student