An explanation of what radar is and how Doppler radar has come to be used in weather detection. The operation of Doppler radar is illustrated and discussed in an easy-to-understand language.

Students follow weather forecasts to gauge their accuracy and produce a weather report for the class. They develop skills of observation, recording and reporting.

Detailed geographical information on any country is available at this site. Within the World Map section, you can get facts and figures about each country's geography, demographics, government, political system, flags, historical and...

The ozone layer is important for blocking most of the harmful radiation that comes from the sun. You can find maps of the ozone layer and compare different regions of the globe for ozone coverage. Some scientists think that aerosols in...

Wonderful site! Learn about climates and gather helpful information. When you are done, take the climates quiz to show what you have learned.