This interactive activity from the Adler Planetarium explains the reasons for the seasons. Featured is a game in which Earth must be properly placed in its orbit in order to send Max, the host, to different parts of the world during particular seasons.

This lesson introduces and describes the main types of erosion (i.e., chemical, water, wind, glacier and temperature). Students learn examples of each type of erosion and discuss how erosion changes the surface of the Earth. Students also learn why engineers need to be aware of the different types of erosion in order to protect structures and landmarks from the damaging effects erosion can cause. Figure 1 is an excellent illustration of water erosion.

Spreadsheets Across the Curriculum module. Students build spreadsheets to tabulate and graph seismic wave amplitude and energy release to explore the logarithmic scale of earthquake magnitude.

This video segment adapted from NOVA tells the tragic story of two Japanese seismologists who disagreed about the threat of earthquakes in the early twentieth century. Today, seismologists in California offer residents a probability of risk that an earthquake might occur.

Students learn how engineers construct buildings to withstand damage from earthquakes by building their own structures with toothpicks and marshmallows. Students test how earthquake-proof their buildings are by testing them on an earthquake simulated in a pan of Jell-O(TM).

In this video segment adapted from NOVA, animations are used to show how the hills around Los Angeles were formed by earthquakes at small thrust faults that extend outward from the larger San Andreas fault.

The history of earthquakes in the San Francisco Bay area is plotted on a digital map and analyzed in this video segment adapted from NOVA.

In this video segment adapted from NOVA, a geologist digs a trench along the San Andreas Fault to reveal three thousand years of earthquake history. Information from the layers of sediment may help geologists to predict earthquakes.

This video segment adapted from NOVA uses historical illustrations, photographs, and animations to explain how seismographs work, the difference between P and S waves, and the Richter scale.

This article provides background information that will help teachers present the science associated with the study of climate, past, present and future. The magazine Beyond Weather and the Water Cycle is structured around the recognized principles of climate literacy. The author explains the science concepts included in the principle related to climate study and research and also identifies additional sources of information.

This issue of the free online magazine, Beyond Penguins and Polar Bears, explores glaciers, wind, water, and volcanoes and their role in shaping the landscape of the polar regions.

This article assembles free resources from the Earth's Changing Surface issue of the Beyond Penguins and Polar Bears cyberzine into a unit outline based on the 5E learning cycle framework. Outlines are provided for Grades K-2 and 3-5.

This list of carefully selected books for grades K-5 highlights nonfiction about climate proxies, those preserved physical characteristics, such as fossils, that scientists use to reconstruct past climates. Also highlighted are a few books that provide information about two past climatic events -- the last ice age and the Dust Bowl. In each issue of the free, online magazine Beyond Weather and the Water Cycle, the virtual bookshelf recommends books that accurately portray the theme drawn from the principles of climate sciences.

Spreadsheets Across the Curriculum module. Students build spreadsheets to forward calculate the Earth's aggregate density from combinations of densities and thicknesses of the Earth's four shells.

In this video produced for Teachers' Domain, Chi-An Wang, a mechanical engineering graduate from the Massachusetts Institute of Technology, describes her process when working with New Balance to design a new triathlon shoe.

In this activity, students will experience echolocation themselves. They actually try echolocation by wearing blindfolds while another student makes snapping noises in front of, behind, or to the side of them.

This activity helps a student recognize the consequences of Type I and Type II errors in hypothesis testing.

The department of economics at Elon changed its curriculum in 1995 to require an independent senior thesis for all majors. Since that time, this activity has evolved tremendously. In 2009, we changed the curriculum again to require a 2 semester hour Fall seminar component to go along with the 2 semester hours. of independent research each student completes in the Spring of their senior year.

The activity is designed to be an interative lecture segment during a larger interactive lecture class period. The technique demonstrated through this example is a double entry journal.

Working in groups of three, students analyze economies of scale. Each student constructs an individual short-run ATC curve, then the three students collaborate to determine if there are economies or diseconomies of scale and to create the long run ATC.