Designing Harmonic Timing Devices: Ready, Set, Escape

• string or shoelaces
• paper
• cardboard
• paperclips
• soap
• glue
• coins
• paper cups
• soda bottles
• stopwatch, for testing purposes only
• Pre-Activity Vocabulary Quiz (PDF)
• Student Handout (PDF)

Permit students to bring from home up to three additional simple items. Do not allow clocks, watches or any other devices that include pre-made timers.