This worksheet is a great review after introducing gases and Boyle's Law. The worksheet has 9 problems that go from relatively simple to more complex. However, they all incorporate the basics of Boyle's Law. I use liters as the sole unit for volume. However, I use atmospheres, torr and mm Hg for pressure. Also, two of the problems on the worksheet relate to completing a data table and then graphing the data to visualize the inverse relationship of pressure and volume. Provide the graph paper or use the one I created and is available for free here on TPT.