Battle Bugs - Center of Mass

Paper Airplane Launcher - Springs

Air Ball - Coanda Effect

Rocket Revolver - Compressed Air

Disc Launcher - Flywheel

Coin Spinner - Ratchet

Trip Wire - Momentum Transfer

Boomerang Car - Worm Gear

Duck Game - Belts

Domino Catapult - Projectile Motion

Strobe Light Animator - Light Refraction

Mirror Bank - Mirrors

Drawing Machine - Linkages