Did you know?... Earthquakes occur when the earth's crust
moves. The study of earthquakes is called seismology. The Richter scale
measures the intensity of an earthquake. Earthquakes are a natural
disaster. When severe, an earthquake can level a city and cause thousands
How To Download Pictures
To save clipart to your hard drive, right click on
a graphic, and then
choose "save as" and select a location on your computer.
Look for the "Did You
Know" section at the bottom of each page.