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A project guide to Earth's waters
por
Introduces basic scientific principles about water and the water cycle, providing instructions for simple experiments that examine such topics as solubility, density, the pH scale, and capillarity.
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Introduces basic scientific principles about water and the water cycle, providing instructions for simple experiments that examine such topics as solubility, density, the pH scale, and capillarity.
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"Introduces basic scientific principles about water and the water cycle, providing instructions for simple experiments that examine such topics as solubility, density, the pH scale, and capillarity."
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