A simple student practical to observe convection. Add a teaspoon of used coffee grounds to a 250 ml beaker and heat on one side using a Bunsen burner. The coffee grounds rise with the hot water as...

Using equal sized pieces of black and silver aluminium tape on the ends of data logging temperature probes you can easily demonstrate the difference in absorption by black and silver surfaces. A 12 V incandescent filament bulb...

A simple demonstration to show how the current changes as a DC motor spins faster. A DC motor is connected in series with a power supply and ammeter. The DC motor is connected mechanically to a fly...