B3 practical: Verification of Boyle's law support
The reason I chose Boyle's law is simply because it's the only one that doesn't need a source of heat. The Charles' law experiment with the thin columns of air trapped by concentrated sulphuric acid always scared me. To buy a class set of pressure sensors plus syringes and tubing might be a bit expensive for a lot of schools but the measurements can be done very quickly so it's possible to do this as a class...