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Water science dates back to the tenth century when Persians made discoveries about groundwater. Mathematician Mohammed Karaji wrote an early book about the main ideas of the water cycle. In the 1500s, Bernard Palissy connected the flow of rivers and streams to rainfall. Astronomers made advances in water science by studying the weather. Today, water scientists are needed to be sure our water is clean and safe for all living things to use.

Produktbeschreibung
Water science dates back to the tenth century when Persians made discoveries about groundwater. Mathematician Mohammed Karaji wrote an early book about the main ideas of the water cycle. In the 1500s, Bernard Palissy connected the flow of rivers and streams to rainfall. Astronomers made advances in water science by studying the weather. Today, water scientists are needed to be sure our water is clean and safe for all living things to use.
Autorenporträt
Dona does not know which is more fun-learning about the world through science, or writing books for children that tell all about it. She is glad she does not have to decide and can do both!