Demonstrates: Surface tension. Description: Water is regularly pulsed out of spouts so, when viewed with a strobe light, the shape of the droplets are visible.
Demonstrates: The tension of a soap film. Description: A string in a metal wire frame is inserted into a soap solution, the area in the string is popped and the remaining soap film will pull the string into a circle.
Demonstrates: Photoelectric effect Description: Voltage is created across an LED at increasing levels until it lights; this will be Vmin. Lasers can be shone on a photoresistor to create current in the circuit and light the LED if they are the right frequency