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National Geographic science of everythinghow things work in our world from cell phones soap bubbles & vaccines to GPS x-rays and submarinesBookمنشور في 2013
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حسب Flynn, Sarah Wassner
منشور في 2017 -
حسب Swanson, Jennifer
منشور في 2016 -
Weird but true!incredible facts awesome photos and weird wonders--for this year and beyond! World 2023Bookمنشور في 2022
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Ultimate explorer guideexplore discover and create your own adventures with real National Geographic explorers as your guidesBookحسب Honovich, Nancy
منشور في 2017