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by Sweeney, Michael S.
Published 2009 -
by Macy, Sue
Published 2017 -
by Sloan, Christopher
Published 2011 -
National Geographic science of everythinghow things work in our world from cell phones soap bubbles & vaccines to GPS x-rays and submarinesBookPublished 2013
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by Evans, Arthur V.
Published 2016 -
When bugs were big plants were strange and tetrapods stalked the eartha cartoon prehistory of life before dinosaursBookby Bonner, Hannah
Published 2003