At places like UCAR in Boulder, there's nothing mindless or even casual about talking about the weather. UCAR researchers are dead serious, in fact, when it comes to the climatological vagaries of living in the world, and they've put together a dandy, prize-winning, kid-tested weather Web site for young 'uns. Log on to Web Weather for Kids and follow the dancing raindrop -- it'll lead you to all kinds of information and related experiments on weather phenomena. It's a great way to engage a young mind on, well, a rainy day.