How Do You Know What Time Is?: Measuring Time (Wells of Knowledge) - Softcover

Wells, Robert

Softcover

ISBN 10: 0807579408 ISBN 13: 9780807579404

Publisher: Albert Whitman & Company, 2002

Synopsis

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.

About this title

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.

From the Inside Flap

What would life be like with no clocks and no calendars? How would you know when to get up in the morning? 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.

Edition details

• Publisher: Albert Whitman & Company
• Publication date: 2002
• Language: English
• ISBN 10: 0807579408
• ISBN 13: 9780807579404
• Binding: Paperback
• Number of pages: 32