An advanced level description of the nature of Brownian motion. Brownian motion, a model formulated to predict matters involving uncertain elements, is related to medical imaging, fractals, robotics, aerosol particles, and stock market...

A variety of activities to help students explore the relationship of water to life on Earth. Provides an opportunity to see how ocean levels have changed over time and what effect that can have on living things.

The forests of Western North Carolina are threatened by a wide variety of environmental stressors and disturbances, such as insects, disease, invasive species, drought, fire, hurricanes, tornadoes, and ice storms. A stressor is any kind...

Beginning with the drought in 2004, this timeline, traces the Niger food crisis to July 2005. (20 July 2005)

The 1930's Dust Bowl era was about the grueling times of people suffering in the drought-stricken region of the Oklahoma pan handle. This lesson will help students to gain an understanding of the plights of the people. Using Woody...

NASA tracked rainfall and soil moisture for a three-month period in 1993 to confirm that these rain patterns were indeed a monsoon. Watch this animation to see the relationship between soil moisture and rainfall in the Southwest U.S. By...

This resource offers another explanation for the disappearance of the Anasazi - a bloody interclan war as opposed to the theory of drought and climactic changes.

"The Cloud" is a one-page, folktale about a cloud who moved closer to the earth, despite warnings that it would die, to save the drought-stricken plants and animals. It is followed by questions which require learners to provide evidence...

Once one of the driest countries on Earth now makes more freshwater than it needs. How can other countries learn what this nation has mastered in an effort to turn droughts around?

Economists do not operate in a vacuum. If an economist is going to suggest that the price of a good needs to be increased, he or she needs to consider who will bear the increase in costs. Will the costs be distributed equally or will one...

The Food Program reports on the difficult recovery in Afghanistan due to years of war and drought. Information on various reconstruction efforts is provided.

Students discover that variation in plants allows some varieties to survive in near-drought conditions. Next, students learn that different types of rabbits prefer to eat different varieties of plants. Students make the connection...

The Tigray are the largest ethnic group in the Ethiopian province of Tigray and in the Eritrean nation. The Tigray have not been as thoroughly studied as their culturally similar neighbors, the Amhara, with whom they share an "imperial"...

The Rukuba live in central Nigeria, on the High Plateau at some 30 kilometers west of the town of Jos, capital of Plateau State. They are one among the numerous small groups inhabiting the region. These groups are, by African standards,...

Weeks after a foul ball bloodied a teen who lived in Babe Ruth's former farmhouse, the Boston Red Sox ended an 86-year title drought. Before gaining his greatest fame with the New York Yankees, Babe Ruth was a star with the rival Boston...

Superstitions and sports are inseparable, but a few sports franchises and athletes have endured runs of such poor fortune that they seemingly can only be explained by the supernatural. Hexes such as the Curse of the Bambino and Curse of...

With rising temperatures and seas, massive droughts, and changing landscapes, successfully adapting to climate change is increasingly important. For humans, this can mean using technology to find solutions. But for some plants and...

A look at the weather, how it is measured, and how it is caused. Learn what weather is like all over the world, how global warming is affecting our planet, and how "extreme" conditions like hurricanes, tornadoes, floods, and drought...

Humans have a great capacity to accommodate to changes in physical environments. Flood, drought, and even global warming lead pragmatic peasants and farmers to assess current ways of operating and seek ways to maximize production....

Use this site as a resource to learn about the many aspects of water.

[Free Registration/Login may be required to access all resource tools.] How water is distributed throughout the world.

[Free Registration/Login may be required to access all resource tools.] How water is distributed throughout the world.

In this lab, students investigate whether the rate of water falling (rain) affects the amount of erosion (soil movement). This experiment could lead to further questions: how does grass or rocks effect soil erosion, does erosion lead to...

Discover the significance of the monsoon and the history of monsoon forecasting.