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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Taal Engels ● Formaat PDF ● Pagina’s 112 ● ISBN 9780766056626 ● Uitgeverij Enslow Publishing, LLC ● Gepubliceerd 2011 ● Downloadbare 3 keer ● Valuta EUR ● ID 8663509 ● Kopieerbeveiliging Adobe DRM
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