Up, down, or open-moving machines
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Author
Publication
2006 - Macmillan/McGraw-Hill, New York, N.Y, New York (State)
Language
English
Word Count
5,000 words, Guess
Page Count
20 pages
Identifiers
- Internet Archiveupdownoropenmovi0000spir
- ISBN-10002192838X
- ISBN-139780021928385
- OCLC Control Number589411951
- Open LibraryOL40205133M
Classifications
- DDC621.8
Description
Discusses how simple machines work using drawbridges, escalators, and retractable roofs as examples.
Subjects
Series Statement
- Macmillan McGraw-Hill leveled reader library. Informational nonfiction. Science. Forces in motion
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