Description

Without water, our most valuable natural resource, our planet would be a barren wasteland, without plant or animal life. The Earth has a limited amount of water that is recycled in the atmosphere, so action is being taken around the world to protect our freshwater supply. Children will dive deep into the World of Water to learn what water is made of and how it was formed on Earth, how people use the power of falling water, and how rivers shape landscapes. Topics include: - the process by which the Earth's water is continuously recycled during the water cycle - the Age of Sail when water was used as a means of transportation for trade, and explorers sailed in search of the Northwest Passage - how much of the world's water supply is held by water sources such as subterranean rivers, geysers, springs, and aquifiers - leach fields, sand filters, and lagoons, and how water is treated before it is ready for human consumption - the biological needs that plants, animals, and humans have for water