Bayer Pharmaceuticals sold heroin as a cough medicine in the 1900s ... who knew? Scholars discover this, and other interesting facts, when they use the resource to prepare for a class discussion or debate. They browse videos, readers'...

Learners decide if tablets should replace textbooks in K-12 schools. They watch four pro and con videos and discover the history of the tablets-versus-textbooks debate. As a bonus, the resource allows them to submit their own comments...

Why was the obtuse angle upset? Because it was never right! A valuable resource is loaded with background information on types of angles and lines. Learners review the characteristics of parallel, perpendicular, and...

Locate glaciers and ice caps on a world map at this USGS site. Read about the formation of galciers and other interesting facts. Learn about the effects glaciers have on the landscape, and of their importance for our fresh water supplies.

This website offers three activity centers: Questionnaires, Opinion Surveys, and Challenge Questions. Take a look at these interesting water research activities from the US Geological Survey. Click Home to access the site in Spanish.

You will find this list of questions interesting and amusing. "Things like, "Is salt water used for anything in the U.S.?," and How can we have a 100-year flood two years in a row?", are found on this this. Click Home to access the site...

The USGS gives an overview of the amount of water on Earth and where it is located. It gives a few interesting facts about the Earth's supply of water. Click Home to access the site in Spanish.