The hydrologic cycle

Discovery Science: Cycle of Matter – Phosphorus Cycle and Water Cycle

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Earth Science: Cycle of Matter – Phosphorus Cycle and Water Cycle Phosphorus plays an important role for all organisms in many processes involving energy transfer and energy maintenance. In addition, water is an indispensable component in all activities of life’s processes. Phosphorus, which occurs in nature almost exclusively in the form of organic compounds or … Read more

Pocket Genius Science: Matter and materials – The water cycle

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Facts At Your Fingertips: Matter and materials – The water cycle Earth’s water is constantly changing state as it circulates between the sea, the land, and the sky. This process is known as the water cycle. Although water is always moving, the total amount of water in the world always stays exactly the same. Water … Read more