Experiment with static electricity that causes lightning, make clouds in your palm, build a desktop water cycle model, watch air currents that produce wind, and study the greenhouse effect and acid rain. These exciting activities will help you understand how our weather works. Contains 1 x balloon, 1 x cloud-shape cover, 1 x mountain shape, 1 x pimpled stopper, 1 x mountain base, 1 x cloud-making pump, 2 x thermometer arm, 2 x thermometer holders, 1 x pencil stand,2 x spiral template, 2 x thermometers, 1 x seed tray, pH test p