Robert Gardner
Air [PDF ebook]
Green Science Projects for a Sustainable Planet

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غلاف Robert Gardner: Air (PDF)

Be green. It is important to keep Earth’s air clean. Using the scientific method, readers perform hands-on experiments that explain the properties of air, how to conserve energy while heating and cooling air, and how to reduce air pollution. Readers who are interested in science fairs will find many ideas for science fair projects.

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لغة الإنجليزية ● شكل PDF ● صفحات 112 ● ISBN 9780766056626 ● الناشر Enslow Publishing, LLC ● نشرت 2011 ● للتحميل 3 مرات ● دقة EUR ● هوية شخصية 8663509 ● حماية النسخ Adobe DRM

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