Everyone's "thinking green" these days. But how do you convince kids that they can make a difference in protecting the earth's resources? Start with this entertaining collection of 35 activities that teach the next generation about environmental challenges -- and what each of us can do to help. Crosswords, mazes, word games, search-and-finds, and unscramble-the-letters games make it easy to learn about global warming, recycling, pollution, solar energy,...