What Does a Screwdriver Do?

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What Does a Screwdriver Do?

From the Series First Step Nonfiction — Tools at Work

Curious readers will discover how screwdrivers tighten screws using different kinds of tips. A back matter spread explains how screws are simple machines used to fasten objects together. Read More →

  • Lexile: 440
  • Dewey: 621.9'72