How Do You Know What Time It Is?

From shadow stick clocks to today's exact time pieces, this book explores the mystery of time and how we can measure it. Full color.

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.

Product details

• Authors: Robert E Wells, Robert E. Wells
• Assisted by: Robert E Wells (Illustration), Robert E. Wells (Illustration)
• Publisher: Albert Whitman & Company
• Languages: English
• Age Recommendation: ages 7 to 10
• Product format: Paperback / Softback
• Released: 01.01.2002
• EAN: 9780807579404
• ISBN: 978-0-8075-7940-4
• No. of pages: 32
• Dimensions: 254 mm x 178 mm x 2 mm
• Weight: 109 g
• Series: Albert Whitman Prairie Books (; Wells of Knowledge Science
• Subjects: Children's and young people's books > Play, learning > Learning; Education and learning > Schoolbooks, general education schools; Children's Books / Ages 4-8 Nonfiction, JUVENILE NONFICTION / Mathematics / General