L I V I N G   T H I N G S

Living things - Last but not least, water exists in all living things. In 60% of the x billion people that live together on Earth, and in the total mass of all living things.

Photo by Lee Prince.

© Copyright 2002 by the UC Regents and the Wyland Foundation.
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PART 1
Water on Earth
 • Overview
 • Stores of Water
 • Infinite cycle:
   finite resource
 • Sculpting the earth
 • What's left to drink?
Quiz
Glossary
Resources
Teacher's guide
Information Sources