Results 1 to 7 of 7
- What are pulleys? / by Frost, Helen,1949-;
Includes bibliographical references and index.- Subjects: Pulleys;
- © c2001., Pebble Books,
- Available copies: 1 / Total copies: 1
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unAPI
- What are wedges? / by Frost, Helen,1949-;
Includes bibliographical references and index.- Subjects: Wedges;
- © c2001., Pebble Books,
- Available copies: 1 / Total copies: 1
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unAPI
- What are screws? / by Frost, Helen,1949-;
Includes bibliographical references and index.Simple text and photographs present screws and their function as a simple machine.- Subjects: Screws.;
- © c2001., Pebble Books,
- Available copies: 1 / Total copies: 1
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unAPI
- The skeletal system / by Frost, Helen,1949-;
Includes bibliographical references (p. 23) and index.Simple text, photographs, and diagrams introduce the skeletal system and its purpose, parts, and functions.- Subjects: Bones; Skeleton;
- © 2000, Pebble Books
- Available copies: 1 / Total copies: 1
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- What are levers? / by Frost, Helen,1949-; Saunders-Smith, Gail; Hammer, Philip W.;
Includes bibliographical references and index.Simple text and photographs present levers and their function as a simple machine.- Subjects: Levers;
- © c2001., Pebble Books,
- Available copies: 1 / Total copies: 1
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unAPI
- What are inclined planes? / by Frost, Helen,1949-; Saunders-Smith, Gail; Hammer, Philip W.;
Includes bibliographical references and index.Simple text and photographs present inclined planes and their function as a simple machine.- Subjects: Inclined planes;
- © c2001., Pebble Books,
- Available copies: 1 / Total copies: 1
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- Sweep up the sun / by Frost, Helen,1949-; Lieder, Rick.;
"Illuminated by exquisite photographs of eleven species of birds, a spare poem inspires readers to open their wings and soar"--Publisher's website.Ages 2-5.Pre-K to Kindergarten.LSC- Subjects: Birds; Nature; Children's poetry, American.;
- Available copies: 1 / Total copies: 1
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unAPI
Results 1 to 7 of 7