This video segment from Between the Lions uses an animated road sign to illustrate and spell familiar words that begin with the /k/ sound that the letter "c" makes.

This site from Palomar College describes the conditions needed for theHardy-Weinberg Principle to hold true.Completes sample calculations involvingthis principle.

These hands-on activities are a great way for students to gain perspective on the relative sizes and distances of each planet, the relationship between the sun and Earth, and much more.

Using understandable words and exceptional graphics, this page describes the transfer of energy by means of the convection process. Contains several links to related topics.

Georgia State University Physics Department privides an incredibly thorough treatment of the laws of thermodynamics. Multiple pages; many informative graphics; opportunities to practice problems and receive immediate feedback.

This primary document is a copy of the Helsinki Agreements of 1975 which recognized the borders in central and Eastern Europe that were set up since the end of WWII. They show the acceptance of the Soviet influence in Eastern Europe. and called for protection of the human rights for all citizens of the nations signing the agreement.

This Henry Howard (1517-1547) index page provides links to a biographical profile of the English poet-soldier as well as to full text examples of his work and related resources.

Part of a larger site on Renaissance literature contains links to many biographies of Henry VIII. Includes a compilation of works written by Henry VIII.

Learn about Social Security and the New Deal at this inquiry-based site. Contains many primary source documents for students to critique, a timeline, video, audio, assignments and a webquest.

This award-winning site has everything you need for online lessons or independent study about the Spanish-American War. Uses an inquiry-based approach with lots of primary sources, and the material can be used in conjunction with almost any textbook. Includes a web quest.

A primary source on the influence of women in labor unions in the early 1900's. A distinction between men and women at union meetings is examined.

These primary source documents are about ordinary Americans throughout US history. There is a full search feature. All the historical documents, whether they are text, image, or audio, have been vetted by a historian. They are initially arranged by date.

This History Place timeline briefly identifies over 100 events of the American Revolution between January 1, 1777 and December 31, 1783. In addition, there are many links to other pages which expand on the events and people mentioned in the timeline.

The first genocide of the 20th Century occurred when two million Armenians living in Turkey were eliminated from their historic homeland through forced deportations and massacres.

Presents a colonist's actual account of the boarding and dumping of the tea into the Boston Harbor on December 17,1773.

This site from The History Place provides both relevant pictures and the full text of the Declaration of Independence. An audio version is also available. Click on "American Revolution Main Index Page" for information on the war itself.

Medieval and Renaissance-era scientific instruments are catalogued and displayed. Find references to the makers of the instruments and the ways the tools were once used.

A site detailing the history of calculus. Many links to informative pages on historical figures. Also links to birthplace maps.