Explore, create and investigate Wind and Water. Learn about these elements through experiments, investigations and hands-on tasks. What on Earth? takes the reader on a journey of discovery to explore the natural elements of our world. Discover all about the water cycle and make a precipitation gauge or grow your own stalactite. This series takes a cross-disciplinary approach, including links to culture, history, arts and crafts, as well as the science behind each topic. Internal links encourage children to choose their own path through the book, with each spread providing a new adventure.