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Air quality
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Yael Calhoun,David Seideman |
Looks at the problems faced and the issues raised in order to keep the air clean and safe, from air pollution sources, such as industrial and vehicle emissions, to the regulations imposed by the Clea… |
OL19825202W |
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Climate change
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Yael Calhoun,David Seideman |
Covers a variety of topics on climate change, including greenhouse gases and the ozone layer, and the effects of climate change on wildlife and water. |
OL19834882W |
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Earth science fair projects, revised and expanded using the scientific method
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Yael Calhoun |
"Explains how to use the scientific method to conduct several science experiments about geology. Includes ideas for science fair projects"--Provided by publisher. |
OL8515850W |
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Plant and animal science fair projects
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Yael Calhoun |
"Explains how to use the scientific method to conduct several science experiments about plants and animals. Includes ideas for science fair projects"--Provided by publisher. |
OL8515854W |