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Screws
Sally M. Walker
Roseann Feldmann
出版
Lerner Books [UK]
, 2008
主題
Juvenile Nonfiction / Science & Nature / General
Juvenile Nonfiction / Technology / Machinery & Tools
Technology & Engineering / Machinery
ISBN
1580134378
9781580134378
URL
http://books.google.com.hk/books?id=Pod6ys2ZjNEC&hl=&source=gbs_api
EBook
SAMPLE
註釋
Focusing on simple machines and how they help us do work in our daily lives, this fun, illustrated and informative text introduces young readers to several basic concepts of physics.
