Heinemann InfoSearch. Awesome forces of nature
Author
Author
Description
Scientists estimate that each year there are several million earthquakes throughout the world. Some are so small that they are never detected. Others are so large that they set off a chain of aftershocks and tsunamis. Read about these terrifying events to learn what causes them and how scientists detect them.
Author
Pub. Date
c2010
Accelerated Reader
IL: MG - BL: 5.6 - AR Pts: 1
Description
Tornadoes occur throughout the world, but happen most often in the United States. Read about the devastating effects of these powerful forces and find out what causes them, how they form, the difference between a waterspout and an on land tornado, and other amazing facts.