The World We Live In
Whirlpool Blower: this amazing demonstration of pressure allows you to suspend pop bottles in a stream of air.
Cartesian Diver: another great demonstration of pressure allows you to control a "diver" just by squeezing the bottle he is in.
Singing Rods: make metal rods sing at different frequencies by creating different standing waves.
Coupled Pendula: this is a great demonstration of conservation of energy and energy transfer with two
connected pendulums.
Inertia Rods: demonstrate moments of inertia with two rods that have the same length
and weight, but with different weight distributions so that one is much easier to swing than the other.
Friction and the Meter Stick: a simple meter stick can demonstrate how friction is related to force.
Galileo Track: a great conservation of energy demonstration involving billiard balls.
Gravitational Acceleration: roll a ball down a ramp and watch as it shows you gravitational acceleration.
Electricity and Magnetism: demonstrate electricity and magnetism with any of the demonstrations listed in the first group.