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About Time: A First Look at Time and Clocks

Bruce Koscielniak

Paperback

Quick Overview

Once, time was undefined--no one knew the difference between a minute, an hour, or a day. People started creating tools to measure time. First they used the sun, the moon, and the water. Soon after, they began to build clocks and create calendars.

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About Time: A First Look at Time and Clocks

Product Information

Item Number 2253801
Interest Level 2-3
Flesch–Kincaid Reading Level 6.7
ISBN-10 0544105125
ISBN-13 9780544105126
Copyright 2004
Publisher Houghton Mifflin