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Oxygen Cycle

S. Hunt

The movement of oxygen from product of photosynthesis, through the human system, water, and Earth's atmosphere is a scientific model called the oxygen cycle. And it's essential for life on Earth to continue. Through accessible language, this book explains an important natural cycle to your readers of all levels, particularly those struggling to understand a standard text book. Facts that allows the inclusion of the most important science vocabulary so all your readers and have the ability to understand, speak, and write about the topic. Gr. 3+

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Full-color Photographs Further Reading Glossary Index 32 pages 6-1/2" x 9" ©20