Bugs in the wall, dead skin cells on the ground-bacteria is found everywhere. Yes, even the cleanest homes have some pretty gross things in them. Readers will learn about the places in a house where the most germs congregate and important ways to keep their own homes healthy places to live. Gross concepts are turned into cool science through accessible text and engaging facts.
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语言 英语 ● 格式 PDF ● 网页 24 ● ISBN 9781433971266 ● 出版者 Gareth Stevens Publishing LLLP ● 发布时间 2012 ● 下载 3 时 ● 货币 EUR ● ID 8668962 ● 复制保护 Adobe DRM
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