The online edition of Seed magazine has a great series of science cribsheets covering various headline-grabbing scientific phenomena, such as string theory, extinction, hurricanes, climate change, and more. They're downloadable as low-resolution GIFs or high-resolution PDF files for printing. They make for great mini science lessons and are handy for brushing up on important science topics just enough so that you can more intelligently follow the news or sound smart at your next cocktail party. This month's cribsheet covers photosynthesis, the process in plants, algae and some bacteria that uses the energy in sunlight to convert water and carbon dioxide into carbohydrates and oxygen.