Rapid changes at Earth's surface, largely in response to human activity, have …
Rapid changes at Earth's surface, largely in response to human activity, have led to the realization that fundamental questions remain to be answered regarding the natural functioning of the Critical Zone, the thin veneer at Earth's surface where the atmosphere, lithosphere, hydrosphere and biosphere interact. EARTH 530 will introduce you to the basics necessary for understanding Earth surface processes in the Critical Zone through an integration of various scientific disciplines. Those who successfully complete EARTH 530 will be able to apply their knowledge of fundamental concepts of Earth surface processes to understanding outstanding fundamental questions in Critical Zone science and how their lives are intimately linked to Critical Zone health.
This video segment adapted from NASA's Goddard Space Flight Center discusses how …
This video segment adapted from NASA's Goddard Space Flight Center discusses how a drought can have negative effects locally, for example by increasing the number of forest fires, and also globally, for example by impacting air quality thousands of miles away.
Our planet is becoming hot. In fact, Earth may be warming faster …
Our planet is becoming hot. In fact, Earth may be warming faster than ever before. This warming will challenge society throughout the 21st century. How do we cope with rising seas? How will we prepare for more intense hurricanes? How will we adapt to debilitating droughts and heat waves? Scientists are striving to improve predictions of how the environment will change and how it will impact humans. Earth in the Future: Predicting Climate Change and Its Impacts Over the Next Century is designed to provide the state of the art of climate science, the impact of warming on humans, as well as ways we can adapt. Every student will understand the challenges and opportunities of living in the 21st century.
Our planet is becoming hot. In fact, Earth may be warming faster …
Our planet is becoming hot. In fact, Earth may be warming faster than ever before. This warming will challenge society throughout the 21st century. How do we cope with rising seas? How will we prepare for more intense hurricanes? How will we adapt to debilitating droughts and heat waves? Scientists are striving to improve predictions of how the environment will change and how it will impact humans. Earth in the Future: Predicting Climate Change and Its Impacts Over the Next Century is designed to provide the state of the art of climate science, the impact of warming on humans, as well as ways we can adapt. Every student will understand the challenges and opportunities of living in the 21st century.
This activity is a field trip investigation where students gather stream flow, …
This activity is a field trip investigation where students gather stream flow, volume, depth & height (area) data on Ramsey County dams (Keller and Round lake), interpret their findings and make in-depth observations in order to assess the effectiveness of dams through the season and estimate the life-span of the dams in years.
The goal of this exercise is to have students gain an understanding …
The goal of this exercise is to have students gain an understanding of how fractures affect groundwater flow patterns. In order for them to complete the activity, they need some background on characteristic fracture patterns in different rock types. This background could be provided in a variety of ways depending on geographic location and outcrop availability. If outcrops of crystalline and sedimentary sequences are available, you could take students in the field and have them observe (and perhaps sketch) the differing fracture patterns. If geology (and or weather) preclude this option, the students could observe fracture patterns from slides of outcrops (see slides in accompanying PowerPoint Presentation).
The classroom portion of the exercise uses a simple 2D numerical model (TopoDrive, available from USGS) to simulate flow in three aquifers: 1) homogeneous isotropic, 2) fractured crystalline, and 3) fractured sedimentary sequences. The task is to observe how the fracture patterns alter the flow patterns as compared to the homogeneous, isotropic simulation. The activity gives students practice in integrating geologic data into numerical models, describing flow patterns, and using computer technology. The activity also integrates knowledge from structural geology with hydrogeology.
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This task, by ClimeTime educators, is for 4th grade students. After class …
This task, by ClimeTime educators, is for 4th grade students. After class discussions about how dams affect rivers, students analyze aerial photographs of the Elwha River taken just before and at intervals after the removal of the Elwha Dam. Students incorporate what they have learned about erosion to explain the phenomenon of change in the turbidity of the water and structure of the beach at the mouth of the river. Resource includes a student task document, teacher guide, and task facilitation slides.
Students learn about the water cycle and hydrology through a series of …
Students learn about the water cycle and hydrology through a series of three lessons, two coloring book pages, and an e-Book. The themes covered in this resource tie into Climate Science and fundamental climate principles, as well as, engages students in scientific methods.
In this unit, students explore the various roles of environmental engineers, including: …
In this unit, students explore the various roles of environmental engineers, including: environmental cleanup, water quality, groundwater resources, surface water and groundwater flow, water contamination, waste disposal and air pollution. Specifically, students learn about the factors that affect water quality and the conditions that enable different animals and plants to survive in their environments. Next, students learn about groundwater and how environmental engineers study groundwater to predict the distribution of surface pollution. Students also learn how water flows through the ground, what an aquifer is and what soil properties are used to predict groundwater flow. Additionally, students discover that the water they drink everyday comes from many different sources, including surface water and groundwater. They investigate possible scenarios of drinking water contamination and how contaminants can negatively affect the organisms that come in contact with them. Students learn about the three most common methods of waste disposal and how environmental engineers continue to develop technologies to dispose of trash. Lastly, students learn what causes air pollution and how to investigate the different pollutants that exist, such as toxic gases and particulate matter. Also, they investigate the technologies developed by engineers to reduce air pollution.
This is a inquiry-driven class research project on a local environmental geochemistry …
This is a inquiry-driven class research project on a local environmental geochemistry question that is accomplished during three-hour laboratory sessions each week. Students are divided into groups that will share the responsibilities of collecting samples and data. Once the data is collected, it is shared among the entire class so that all students have the same data set. The class works on data presentation, preliminary analysis, and statistics together Then each student writes his/her own report separately.
Outcomes:
Laboratory skills -- Students have basic laboratory skills necessary to carry out a supervised geochemical study (e.g. can perform Gram titration of waters in field, can collect water samples using clean methods).
Quantitative methods -- Students can manipulate, sort, and transfer data in Excel and can create simple x-y plots and histograms to bring out trends in data.
Critical thinking -- Students can develop multiple hypotheses to explain trends in data and can design tests of these hypotheses.
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This is an independent case study project completed in pairs. The students …
This is an independent case study project completed in pairs. The students should investigate an example of natural geochemistry and then use a poster format to share their findings with the class.
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Students collect data for this term project starting with the first lab …
Students collect data for this term project starting with the first lab exercise and continuing throughout the semester. As each unit is covered in the text, class, and lab, students are directed to collect data relevant to their term project. For example: Topographic maps are covered at the start of the semester and students must locate their home; describe its location using the Public Land Survey, Universal Transverse Mercator, and Longitude-Latitude Systems; and describe the local topography. When natural hazards (flooding, slopes, earthquakes, volcanoes, and radon gas) are covered, students must use web resources (some of which are provided by the instructor at http://www2.ivcc.edu/phillips/geology/environmental_research.htm), local resources (such as the local fire chief, library, mayor, relatives, and neighbors), and personal observation to identify hazards and assess the risk they pose; these hazards are submitted as part of a lab assignment. The information collected is analyzed using the principles discussed in class and feedback is provided on pieces that are submitted throughout the semester. At the conclusion of the semester, students organize the collected information, add illustrations (maps and photos), analyze and evaluate the materials collected, and conclude the report with a discussion of how the area should be developed in the future based on the principles learned in the class.
The activity shows the students the immediate relevance of the material as it is covered, shows the students the types of information publicly available, and helps them develop critical analysis skills. The activity introducers students to basic geologic knowledge and shows them how to make use of it.
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The Environment and the Earth class at the University of South Carolina …
The Environment and the Earth class at the University of South Carolina participated in a campus environmental service-learning project where students collected data lighting, water fixtures, recycling bins, and trash in five academic buildings.
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Compiled by Suzanne Savanick, Science Education Resource Center. Based on Bixby et al. (2003), Ecology on Campus: Service Learning in Introductory Environmental Courses, Journal of College Science Teaching, v. 32, n.5, o, 327-331.
A great variety of processes affect the surface of the Earth. Topics …
A great variety of processes affect the surface of the Earth. Topics to be covered are production and movement of surficial materials; soils and soil erosion; precipitation; streams and lakes; groundwater flow; glaciers and their deposits. The course combines aspects of geology, climatology, hydrology, and soil science to present a coherent introduction to the surface of the Earth, with emphasis on both fundamental concepts and practical applications, as a basis for understanding and intelligent management of the Earth’s physical and chemical environment.
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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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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Students will be given the task to build a dam that will …
Students will be given the task to build a dam that will stand against water. Students will design and build a scaled model of a dam and test the model for the ability to reduce the impact of a flood. Students will build a scaled model dam and test the dam's effectiveness in preventing flood waters. Students will evaluate the efficacy of the dam they constructed and built. Students will contemplate what actions can be taken and materials that could be used in order to create a more effective dam in the future. This unit was created as part of the ALEX Interdisciplinary Resource Development Summit.
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