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Timekeeping: Explore the History and Science of Telling Time with 15 Projects

eBook (PDF), 130 Pages
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Price: $8.99
Illustrated by Sam Carbaugh. Timekeeping: Explore the History and Science of Telling Time travels through the past and into the future to explore how humans have measured the passage of time. From ancient civilization’s earliest calendars and shadow clocks to GPS and the atomic clocks of today, kids will track the evolution of timekeeping devices, meet the inventors of calendars and clocks, and learn interesting facts and trivia. Hands-on projects and activities include making a shadow clock, using a protractor to create a sundial, measuring time using water, and creating your own calendar. Kids will understand how civilization’s vague abilities to track days and months has transformed over the centuries into a sophisticated ability to keep time to the millionth of a second.
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Product Details

Published
October 25, 2012
Language
English
Pages
130
File Format
PDF
File Size
18.94 MB

Formats for this Ebook

PDF
Required Software Any PDF Reader, Apple Preview
Supported Devices Windows PC/PocketPC, Mac OS, Linux OS, Apple iPhone/iPod Touch... (See More)
# of Devices Unlimited
Flowing Text / Pages Pages
Printable? Yes
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