Annotation: "Air and water are everywhere, playing a crucial role in human survival, and the survival of most of the planet. For a young scientist, understanding these integral parts of our world is the first step to understanding larger scientific concepts. From a hands-on approach to water surface tension to understanding air pressure, young readers will discover how both air and water work. Instructions and informative fact boxes help young readers to effectively set up their own experiments and record their findings."-- cProvided by publisher.