How Do You Know What Time It Is?

How Do You Know What Time It Is?

How Do You Know What Time It Is?

How Do You Know What Time It Is?

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Overview

Oppenheim Toy Portfolio Gold Seal Award 2003

What would life be like with no clocks and no calendars? How would you know when to get up in the morning? How would you know when baseball season was about to start? Long, long ago, all people could do was watch the sun and moon and try to figure things out. Eventually, they made simple clocks like sundials. And as time marched on, people came up with more ways to measure it. Today, quartz crystal watches and atomic clocks tell us EXACTLY what time it is, at any moment, all over the world.


Product Details

ISBN-13: 9780807579404
Publisher: Whitman, Albert & Company
Publication date: 01/01/2002
Series: Wells of Knowledge Science Series
Pages: 32
Sales rank: 708,309
Product dimensions: 10.50(w) x 7.00(h) x 0.10(d)
Lexile: 870L (what's this?)
Age Range: 7 - 10 Years

About the Author

Robert E. Wells is the author and illustrator of many award-winning science books for children, including Can You Count to a Googol? and Why Do Elephants Need the Sun?. He lives with his wife in Washington.


Robert E. Wells is the author and illustrator of many award-winning science books for children, including Can You Count to a Googol? and Why Do Elephants Need the Sun?. He lives with his wife in Washington.

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