Levers

Levers

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Jan 16, 2013 · 英语 · 电子书 (24 页数)
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书籍详情

格式 电子书
页数 24
语言 英语
已发布 Jan 16, 2013
出版商 Gareth Stevens Publishing
ISBN-10 1433981394
ISBN-13 9781433981395

描述

You might not realize it, but you use many kinds of levers every day. The fork you use to eat, the broom you use to sweep, and the scissors you use to cut paper are all levers. Even the bones inside your body are levers. Levers help us lift things and get work done--readers learn all about the science behind levers in this fun and fact-filled book. Bright photographs and illustrations accompany accessible text to help readers understand the science concepts presented in this book. Readers will also find a detailed graphic organizer and glossary inside, allowing them to independently explore these simple machines.

类型

科学与技术
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