[@Nightmare Bunny] I actually did all of that last year. Let me dig up my books xD EDIT ok for Boyle's Law we got p = pressure V = volume and T = temperature Boyle's law practically says that the pressure of a certain amount of gas which's temperature stays constant is inversely proportional to the volume it occupies. For example, imagine you got a glass cube and inside you got gas right? The cube is sealed off with a lid so as to not let any of the gas out. Now, say that you put the cube inside a container that is filled with water which's temperature is on a constant value. That means that the temperature of the cube and also the gas is the same as the waters, It doesn't change. If everything above is present then Boyle's Law works and if you apply force to the lid and move it downwards, the pressure of the gas inside the cube increases while its volume decreases.