This activity is a field investigation where students find real-life examples of …
This activity is a field investigation where students find real-life examples of erosion in their school surroundings. Students will extend what they learned during stream table lessons about erosion, deposition, deltas, meandering streams, and dams.
The year is 2050 and your once-idyllic beachfront vacation home is now …
The year is 2050 and your once-idyllic beachfront vacation home is now flooded up to the second story. The crab your family has enjoyed every Christmas for as long as you can remember has now become an endangered species. The oceans have changed. In Earth 540, Oceanography for Educators, we explore the mechanisms that lead to sea level rise and ocean acidification. We strive to understand how natural processes such as ocean currents, the gulf-stream, tides, plate tectonics, and the Coriolis Effect, affect our oceans and ocean basins. We then predict how man-made issues such as climate change and overfishing will affect our beloved waters and our livelihoods. Want to see into the future? Then this course is for you!
El módulo de Calidad del Aire de Alta Aventura Científica contiene cinco …
El módulo de Calidad del Aire de Alta Aventura Científica contiene cinco actividades. En este módulo se explora la pregunta: ¿Estará el aire lo suficientemente limpio como para respirarlo? Serán guiados a través del análisis de modelos y datos del mundo real a medida que exploran las interacciones de los factores que afectan la calidad del aire de una región. Al finalizar el módulo serán capaces de predecir el efecto del desarrollo humano sobre la calidad del aire de una región.
This is a static visualization, referenced from a UNEP rapid response assessment …
This is a static visualization, referenced from a UNEP rapid response assessment report entitled In Dead Water, depicting the estimated contributions to sea-level rise from 1993 - 2003.
The learning objectives for this GIS exercise are to 1) understand rainfall …
The learning objectives for this GIS exercise are to 1) understand rainfall spatial variability and how to account for it when making areal-rainfall estimates, and 2) learn how ArcGIS can be used as a tool to determine areal averages, and 3) compare the advantages and drawbacks of the various techniques.
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On July 4th, 1997, Mars Pathfinder landed at the mouth of Ares …
On July 4th, 1997, Mars Pathfinder landed at the mouth of Ares Vallis, a large channel that drains into the Chryse Planitia basin. While there remains a great deal to debate about the origin of the channels, one of the leading hypotheses at present is the idea that these features are the result of catastrophic flooding. If this is correct, then the plains where Pathfinder landed may be rich in debris eroded out of the Martian highlands across which the Ares Vallis channel passes, providing a golden combination -- a relatively safe landing site which still provides access to a wide variety of different rock types. [If you would like to learn more about the many Pathfinder results, explore the April, 1999 and January, 2000 issues of the journal Journal of Geophysical Research -- Planets (the green one) in the library.]
For the sake of this lab assignment you will hypothesize that the Ares Vallis and associated deposits were indeed produced by catastrophic flooding, and will use the information at your disposal to learn all you can about the putative flooding event.
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This is a service-learning project for students in Geography 204 (Weather, Climate …
This is a service-learning project for students in Geography 204 (Weather, Climate and Ecosystems). Students will assess prior estimates of carbon offsets associated with plant and soil biomass on their college campus; and as a result, they will understand the complexity of measuring the complex sources of carbon emissions and offsets; address the challenges of coordinating data collection and field measurement; and realize importance of estimation in public policy contexts.
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In this computer lab, students use satellite imagery, daylength information, and phytoplankton …
In this computer lab, students use satellite imagery, daylength information, and phytoplankton physiology models to calculate annual primary production for an assigned ocean region.
Satellite data is obtained from the NASA Earth Observation website. Students use the analysis tool to determine chlorophyll concentration and sea surface temperature. They also receive a day-length calculator and are asked to model light transmission through the water column. Using step-by-step instructions and proviede equations relating phytoplankton physiology to irradiance and temperature students calculate carbon uptake at discreet locations in the water column. The second half of the exercise involves scaling up to the entire water column, region, and season. Students present their work to the class and evaluate their result using scientific literature. Differences between regions are then discussed by the class.
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Students make measurements of dam dimensions and water levels above and below …
Students make measurements of dam dimensions and water levels above and below a small, accessible earthen dam. They assess the soil texture in the field. They follow up by developing a simple flow net and estimating seepage rate as part of a problem set. They discuss their assumptions and the likely sources and magnitude of error.
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Eureka, CO Mining Town. Western Mining History presents a brief summary of …
Eureka, CO Mining Town. Western Mining History presents a brief summary of Colorado's Historical Mining Towns with links to additional Colorado resources for a mining town database and mines by county. Western Mining History is an historical site that provides information on mining, mining towns, the gold and silver rush, and Photos and maps of the western United States. This is a strong primary source resource that can be used for a variety of class research projects. Consider becoming a member or making a donation to help further the work of the site.
Students explore material properties in hands-on and visually evident ways via the …
Students explore material properties in hands-on and visually evident ways via the Archimedes' principle. First, they design and conduct an experiment to calculate densities of various materials and present their findings to the class. Using this information, they identify an unknown material based on its density. Then, groups explore buoyant forces. They measure displacement needed for various materials to float on water and construct the equation for buoyancy. Using this equation, they calculate the numerical solution for a boat hull using given design parameters.
This activity leads to understanding common landslide hazards in the area and …
This activity leads to understanding common landslide hazards in the area and how they relate to weather patterns and/or local geology.
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An in-class jigsaw activity, in which students play the role of investigators …
An in-class jigsaw activity, in which students play the role of investigators consulting on behalf of an industrial client seeking an appropriate location to site a new facility to handle environmentally-damaging materials, allows students to interactively tie together key aspects of decision-making (e.g. hazardous Earth processes, prevention/mitigation strategies, sustainability, and the incorporation of multiple types of data to solve complex problems). This activity was designed to be completed within one ~75 minute class meeting, although aspects of this activity can easily be modified to accommodate shorter class periods. In small groups, students examine one of five possible proposed sites for the facility, evaluating it based on its described geologic, economic, and/or social criteria. Students are then scrambled into new, larger groups, in which representatives of all five proposed sites report their findings, and then the sites are collectively ranked in order of preference. Rankings between the larger groups are compared and discussed as a class, including topics such as a comparison of criteria and overall rankings, descriptions of most beneficial and most needed data, and comparison of the activity to "real-life" scenarios.
Students use a series of maps and natural hazard data to evaluate …
Students use a series of maps and natural hazard data to evaluate the risk to a building structure of their choice in the state of California. For each hazard, students rate the potential risk in two dimensions: (1) Probability - probability that a hazardous event "may" occur, and (2) Severity of Impact - the size of the impact in terms of cost and impact on human health.
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This module introduces students to the fundamental principles and uses of electrical …
This module introduces students to the fundamental principles and uses of electrical resistivity, with a focus on an environmental application. Students explore the characteristics and environmental setting of Harrier Meadow, a saltmarsh just outside of New York City. They investigate the relationship between electrical resistivity and physical properties of the soil in the marsh. Students also discover how variations in survey configuration parameters control investigation depth (how far into the ground the signals sense) and spatial resolution (what size objects can be detected). Finally, students learn about and then perform geophysical inversion, which is the process of estimating the geophysical properties of the subsurface from geophysical observations. In the final unit of the module, students evaluate the extent to which the geophysical dataset and direct physical measurements support the hypothesis, introduced in Unit 1, accounting for the distribution of Pickleweed in Harrier Meadow. This module is intended to require approximately 2-3 weeks of class time. Teaching material includes PowerPoints that may be used in lectures or provided for self-guided learning, exercises, and handouts that ask students to synthesize what they learn from the exercises. In addition, multiple choice and short answer questions can be given to students as homework, on quizzes, or on exams.
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In this in-class exercise, students compare several lines of evidence that support …
In this in-class exercise, students compare several lines of evidence that support the ideas of continental drift and plate tectonics. Before the class meeting, each student is given a preparation assignment in which he/she studies one "continental drift" and one "ocean floor data" map. In class, students divide into teams of 3, with each team member having prepared different specialties. They discuss their respective maps and look for spatial patterns among the data.
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This assignment is best presented in two lab periods to represent the …
This assignment is best presented in two lab periods to represent the "before" and "after" scenarios of land use and their impact on hydrology. It requires documentation in map and/or airphoto form of land use in a specific watershed at two times: historical and modern. Historical USGS topographic maps from the 19th century were used in this case, along with digital orthophotos for the modern-day scenario. Some means of quantifying subareas within the watershed is also needed, either using software (ArcGIS) or transparent overlays and boxcounting from a translucent grid would work. For each of the sets of documentation: historical and modern, the students follow the USDA-NRCS TR55 empirical procedure to estimate event runoff depths and peak estimated discharge from the watershed. An area-weighted curve number (CN) is calculated based on tabulated categories of land use. Some judgment is involved in adapting the tabulated land use categories to the specific watershed used, and selecting an appropriate statistical average rainfall event to use. The sum of Darcy's Law calculations of discharge along streamtubes to a surface stream or estuary provides a groundwater discharge value over time for comparison. Each of these parts of the activity provides opportunities for the instructor to discuss uncertainties and sources of error. Note that although software allowing TR-55 analysis exists, it is simpler and more instructive to have students use the paper method and forms in the manual.
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Students observe the process of evaporation, make comparisons about the process, then …
Students observe the process of evaporation, make comparisons about the process, then construct a diagram and use it to describe the process of evaporation.
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