Student chemists from Grand Valley State University, Hope, Calvin, Aquinas, and Grand Rapids Community College will be performing several different chemistry demonstrations in recognition of National Chemistry Week. These colleges will be hosting a free show open to the public on Saturday, Oct. 13, from noon-4 p.m. at the Lakes Mall on Harvey Street in Muskegon, Mich. This year’s theme for Chemistry week is nanotechnology. National Chemistry Week will run from Oct. 21-27, and is sponsored by the Western Michigan section of the American Chemical Society.