The other method uses a clamp, what do we do for this method and why?
boilingtube,funnel and beaker and gas syringe to be able to catch volume of oxygen
Beaker filled with water and trap pondweed in a funnel with a boiling tube over the funnel
2. Oxygen will pass into boiling tube, displace the water and after a fewhours you can measure oxygen with gas syringe or use a glowing splint that will relight to show oxygen is present
