Web Site of the Week

Each week, we highlight a Web site that we think may be helpful in some way to teachers. The highlighted sites are not part of or connected with Science News for Kids, Science News, or Science Service. We are not responsible for their content.

July 13, 2005

About Time

To find out the official time, visit the joint Web site of the National Institute of Standards and Technology and the U.S. Naval Observatory. Two ultraprecise clocks contribute to a pool used to define "coordinated universal time." These two clocks are not supposed to differ by more than one ten-millionth of a second. The site also provides links to presentations on topics such as timekeeping, calendars, and clocks.

Go to: www.time.gov

More recommended web sites for teachers

Recommend a Web site. Send e-mail to teacherzone@snkids.com