Digital, analog, and now binary clocks? The lesson teaches individuals how to interpret binary code. They use an online software program to read binary clocks.

In this time telling worksheet, students discover how to tell time on a clock after discovering all the parts of a clock and the purposes of the little and big hands.

Build the vocabulary your second graders need to meet the Common Core Math Standards with this list of key terms. Complete with a set of vocabulary cards that support each word image and examples, this resource is an excellent tool for...

An entomologist named Geroge Vernon Hudson is credited with proposing Daylight Saving Time (DST) so he could better study his insects. Using the informative website, scholars read a brief introduction to the topic and then explore the...

Focus on how to conjugate Spanish verbs in the preterite. You can use this webpage to inform your own lesson on the preterite, take a day in the computer lab, or flip your classroom and have pupils examine the page for homework. There is...

Learn about the development of early clocks from the 14th through to the 19th centuries.

The first atomic clock was designed by Louis Essen in 1955. Find out about how it works and how atomic clock technology has developed.

Find out about Christiaan Huygens who built the world's first pendulum clock in 1656. The pendulum clock became the most accurate clock in the world for nearly 300 years.

This site from the U.S. Navy provides a great description of the history and workings of cesium based atomic clocks. Very interesting.

Get a visual and animated definition of the analog clock and how to use it from LearnAlberta.ca's Mathematics Glossary.

In this graphic and article from "The Human Evolution Coloring Book" by Adrienne Zihlman, four different proteins from humans and horses are compared and the reasons each protein evolves at its own characteristic rate are discussed.

Kids learn about the timing and the clock in basketball. How long is a basketball game.

Use this site to find out what a pH meter is and how to use it in this informative and concise site.

This site explains how a Spec. 20 spectrometer measures the amount of visible light absorbed by a colored solution. Requires QuickTime plug-in for some features.

An illustrated history of timekeeping from ancient times to the present. Includes information on ancient calendars, early clocks, a revolution in timekeeping, world time scales and time zones, and the NIST standards.

The transcript of a talk given on the syndicated radio broadcast titled "The Engines of Our Ingenuity." Interesting account of Robert Hooke. Using a captivating and engaging story line, the article tells of Hooke's many interests in...

Factual information to discuss in schools from the U.S. Census Bureau includes population clocks, state facts, and important information that affects the world of the student.

A collection of articles on evolutionary genetics focusing on the topics of phylogenetics, mutation and molecular population genetics, the genetics of speciation, genome evolution, and evolution and development. Learn how to read a...

This site contains a couple different ways that one can forecast the weather. Methods include the Climatology Method, the Analog Method, and Numerical Weather Prediction.

Use this site to learn about Benjamin Banneker (1731-1806 CE), an African American that created the first clock built in the United States and was known as our first great Black Inventor.

Provides an overview of the life of Benjamin Banneker in an easy to read format. Learn why he was an accomplished mathematician, astronomer, surveyor, and almanac writer.

Take a walk through time as Extreme Science explains time starting with ancient calendars and early clocks to how the National Institute of Standards and Technology uses time today.

This illustrated timeline from the NOVA Web site turns back the clock to the late 1500's to relive the dramatic life of one of the world's most renowned scientists.

Article discusses the impact of light pollution on the health of human beings as well as on plants and wildlife. (Updated July 18, 2012)