Here's you answer to all the questions children ask and all the wonders they want to investigate - from the marvel of a raindrop on a leaf, to the power of a volcano, to the mysteries of the universe. This award-winning bestseller is the BIGGEST and BEST collection of science activities for children 6-14 years. There are more than 450 projects, experiments, games, puzzles, and stories! They cover all areas of science, including matter and energy, the human body, the environment, rocks, plants, animals, insects, weather, stars and planets, and technology.