Timekeeping: Explore the History and Science of Telling Time with 15 Projects
EPUB
Unlimited loans, One at a time
Details
Offer details
Loans rules
Loans count
Unlimited loans
Concurrent users
One at a time
License duration
unlimited lifetime
License max duration
59 days
Protection
Protection type
acs4
Authorized devices
6 loans
Copy/paste
False
Print
False
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.