In this activity, you will use a gas properties simulation to analyze how the variables that describe a gas relate to each other under different conditions. In the center of the simulation is a box with a lid. The box can be filled with gas particles. There's also a thermometer and a pressure gauge. You can choose the type of particle you want. You can also change the energy of the particles by heating or cooling the box. The controls on the right panel allow you to hold certain parameters constant or to change the number of particles in the box. Near the bottom are options to pause and reset the simulation.