This learning module looks at how and where tornadoes form, the damage they do, the loss of human lives, the cost, safety measures, what to do when a tornado is approaching, famous tornadoes, the practice of storm chasing, and how...

The search is finally over. You've received a job offer and it sounds too good to be true. Before you scream "I accept," step back and think. There are many factors to weigh before deciding whether to accept and on what conditions.The...

Young scholars will view flooding situations and hypothesize how much risk they are in their homes and schools. They will also estimate the expense of living through a flood and compare the price to the cost of repairing damage due to...

This unit builds on student knowledge of the quest. Students come to understand how great literature reflects life, and how in any journey (be it physical or metaphysical) patience is important for gaining wisdom and experience along the...

Governments and other financial organizations are constantly measuring trends in the economy to try to predict what will happen next. The ability to successfully predict economic trends has a profound effect on whether or not a business...

This site was established by CNN to serve as an "evolving record" of and "living memorial" to those who perished in the attacks of September 11, 2001.

This lesson explores different types of inflation and terms associated with this economic concept. You may have heard relatives talk about the good old days when a dollar would buy something. What happened to that dollar? Why won't it...

The United States is losing 60,000 acres of wetlands each year. Is this good or bad? Does anyone really want to live in swamps, fens, bogs, and marshes? Or is it better economics to drain the wetlands for other purposes like agricultural...

What factors are important to consider in order to make informed energy decisions? In this interactive, you select one of three locations and the energy resources and then try to provide 100% of that community's electricity needs while...

The 1.7-mile-long Golden Gate Bridge has endured earthquakes, lead paint and record crowds since its historic construction in 1937. Check out the eight surprising facts about he Golden Gate Bridge.