An in-depth look at the water that covers over 70% of our planet. Understand how the water cycle works; explore oceans, lakes and rivers; how will global warming affect Earth's water if the polar ice caps melt; how do humans use water, and what can we do in the future to protect and preserve this essential resource. Understand how our planet really works with this fantastic new series that combines core topics from the science and geography curricula. Packed with amazing facts and fabulous imagery. Suitable for use at Key Stage 2 and with older Hi-Lo readers.