You can play with a gas simulator. You can control the relative amounts of two gases, A and B with the pump handle. You can release gas with the release valve. The temperature can be raised and lowered, plus you can have volume locked or change. Play around with it and notice the relationships of P,V,n,and T.
This only works with Flash enabled devices (no iPhones or iPads).
Gas Laws Activities
A couple of worksheets about Gas Laws and Thermodynamics to be used in the classroom.
The files are available in pdf and/or doc format.
They have incorporated an inquiry-based approach to learning, where students are encouraged to discover principles, properties, and relationships in realistic simulations. The experiments utilize photographic images of real laboratory equipment, and students are allowed to freely manipulate the objects in the "laboratory."
Pump gas molecules to a box and see what happens as you change the volume, add or remove heat, change gravity, and more. Measure the temperature and pressure, and discover how the properties of the gas vary in relation to each other.