Sale American Educational 8495-DVD Acid Rain Earth Science Videolab with DVD

American Educational 8495-DVD Acid Rain Earth Science Videolab with DVD

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American Educational 8495-DVD Acid Rain Earth Science Videolab with DVD Item Description:
Measure the pH of water samples investigate the effects of rain on plants and soils create acid rain posters chart the path of acid rain from source to deposition and estimate the contribution of automobiles to the acid rain problem Includes the DVD Acid Rain The Invisible Threat Teachers Gui Read More..

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