Here are photos of the kind of experiments I run in Physics for various classes from year 7 to A Level.
Refraction of a green laser through glass 
Diffraction pattern of a red laser though a grating 
A stack of copper and zinc – a Voltaic Pile, producing 15V 
A metalled ball bouncing between a large voltage between two charged plates 
24V through an HB pencil 
The graphite from a pencil glowing due to its resistance at 24V 
An ultra capacitor of two sheets of aluminium separated by a bin bag and 3000V 
Faraday’s first electric motor 
Various items shown under ultra violet 
Total internal reflection in glass blocks 
An image projected through a convex lens 
An image projected and magnified through a convex lens 
Testing the conductivity of 5 materials with knobs of butter 
White light separated into the spectrum of colours by a prism 
Irion filings showing the field lines of a large magnet 
CRT tvs showing static noise of cosmic background radiation from the Big Bang 
Equations of Special Relativity 
Cous cons showing electric field lines in oil 
We have a class set of these electronic project kits 
An rgb LED 
A pack of paying cards under ultra violet 
Equipment to demonstrate the early years of electricity 
A stack of copper coins and zinc with filter paper soaked in vinegar between each layer producing a record 31V
Ding! 