This Western Mining History database uses Mineral Resources Data System to list …
This Western Mining History database uses Mineral Resources Data System to list known Colorado historical mines by county. Each county site has links to the known mines within its borders. Some are known and named, others are unnamed. Mines should be assumed to be on private property unless other research is conducted. Data provided for each mine site include: Name, State, County, Elevation, Primary Mineral Mined, Latitude and Longitude and a link to Google Maps. Photos are provided where available. Additional information for some Mines are satellite photos, and ownership, business and historical records. 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 great database for student historical research or data and statistics classes. Consider becoming a member or making a donation to help further the work of the site.
This hands-on lab activity is designed to teach students about how density …
This hands-on lab activity is designed to teach students about how density differences, due to salinity, drive the flow of currents in the ocean. It also helps develop skills in performing and designing simple laboratory measurements; data entry, calculations and graph plotting in a spreadsheet; and comparing experimental data with a theoretical equation. Key words: ocean circulation; density driven flows; salinity; ocean density; thermohaline circulation.
This Western Mining History database uses Mineral Resources Data System to list …
This Western Mining History database uses Mineral Resources Data System to list known Colorado historical mines by county. Each county site has links to the known mines within its borders. Some are known and named, others are unnamed. Mines should be assumed to be on private property unless other research is conducted. Data provided for each mine site include: Name, State, County, Elevation, Primary Mineral Mined, Latitude and Longitude and a link to Google Maps. Photos are provided where available. Additional information for some Mines are satellite photos, and ownership, business and historical records. 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 great database for student historical research or data and statistics classes. Consider becoming a member or making a donation to help further the work of the site.
Students design and build model landfills using materials similar to those used …
Students design and build model landfills using materials similar to those used by engineers for full-scale landfills. Their completed small-size landfills are "rained" on and subjected to other erosion processes. The goal is to create landfills that hold the most garbage, minimize the cost to build and keep trash and contaminated water inside the landfill to prevent it from causing environmental damage. Teams create designs within given budgets, test the landfills' performance, and graph and compare designs for capacity, cost and performance.
Students create a concept design of their very own net-zero energy classroom …
Students create a concept design of their very own net-zero energy classroom by pasting renewable energy and energy-efficiency items into and around a pretend classroom on a sheet of paper. They learn how these items (such as solar panels, efficient lights, computers, energy meters, etc.) interact to create a learning environment that produces as much energy as it uses.
Students brainstorm ideas for board game formats. Then student teams design, create …
Students brainstorm ideas for board game formats. Then student teams design, create and test games in which players must think of alternative uses (recycling) for used products.
Students will design the integration of renewable or carbon neutral energy sources …
Students will design the integration of renewable or carbon neutral energy sources into the electricity generation mix of an example utility. The structure is a budget or a design or maybe even a puzzle where all the pieces of electricity generation must add up to demand and simultaneously comply with state and federal emissions regulations and renewable energy targets. The puzzle is similar in style to Princeton's well-known "Stabilization Wedges" activity [see Ref. 1]. Enough of the complications are present that students will experience why the switch from coal is so slow and how dynamic the economic and policy environment is. This module can be a one-week capstone of a full course on energy, policy, and sustainability or a two-week focus unit within a broader course if wind, solar, transmission, and storage are intermixed because they were not already covered separately.
Students are challenged to design a permanent guest village within the Saguaro …
Students are challenged to design a permanent guest village within the Saguaro National Park in Arizona. The design must provide a true desert experience to visitors while emphasizing sustainable design, protection of the natural environment, and energy and resource conservation. To successfully address and respond to this challenge, students must acquire an understanding of desert ecology, environmental limiting factors, species adaptations and resource utilization. Following theintroduction, students generate ideas and consider the knowledge required to complete the challenge. The lectures and activities that follow serve to develop this level of comprehension. To introduce the concepts of healthy ecosystems, biomimetics and the importance of sustainable environmental design, students watch three video clips of experts. These clips provide direction for student research and challenge design solutions.
Genetic engineering is responsible for the so-called "second green revolution." Genes that …
Genetic engineering is responsible for the so-called "second green revolution." Genes that encode herbicide resistance, insect resistance, drought tolerance, frost tolerance, and other traits have been added to many plants of commercial importance. In 2003, 167 million acres of farmland worldwide were planted in genetically modified (GM) crops equal to one fourth of total land under cultivation. The most widely planted GM crops are soybeans, corn, cotton, canola, and papaya. Two important transgenes have been widely introduced into crop plants. The Bt gene, from Bacillus thuringiensis, produces a toxin that protects against caterpillars, reducing applications of insecticides and increasing yields. The glyphosate resistance gene protects food plants against the broad-spectrum herbicide Roundup, which efficiently kills invasive weeds in the field. The major advantages of the "Roundup Ready®" system include better weed control, reduction of crop injury, higher yield, and lower environmental impact than traditional herbicide systems. Most Americans would probably be surprised to learn that more than 60% of fresh vegetables and processed foods sold in supermarkets today are genetically modified by gene transfer. In 2004, approximately 85% of soy and 45% of corn grown in the U.S. were grown from Roundup Ready® seed.
Coastal habitats and archeological sites in western Alaska are at risk from …
Coastal habitats and archeological sites in western Alaska are at risk from coastal erosion. Researchers are documenting current assets and vulnerabilities so managers can make informed decisions.
Through this activity, students in a liberal arts mathematics class will develop …
Through this activity, students in a liberal arts mathematics class will develop experience with real-world statistical concepts through the context of sustainability: estimation, survey writing, sampling techniques, and data analysis.
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Students spend the semester developing a stream restoration proposal for a local …
Students spend the semester developing a stream restoration proposal for a local watershed. Students are asked to collect geomorphic field data and use these data to design a restoration plan.
Haz tu propio diario de la naturaleza. Actividad de Bolsa de STEM …
Haz tu propio diario de la naturaleza. Actividad de Bolsa de STEM Semanal. Agentes de Colorado Americorp en los condados de Araphahoe, Denver, Garfield, Larimer y Weld. Trabajo apoyado por la Corporación para el Servicio Nacional y Comunitario bajo el número de subvención 18AFHCO0010008 de Americorps. Las opiniones o puntos de vista expresados en esta lección pertenecen a los autores y no representan necesariamente la posición oficial o una posición respaldada por la Corporación o el programa Americorps.
The overarching goal of this exercise is for students to explore the …
The overarching goal of this exercise is for students to explore the early anthropogenic hypothesis, which claims that early agriculture had a substantial impact on greenhouse gases and global climate thousands of years ago (Ruddiman, 2003). Students compare changes in greenhouse gas concentrations that occurred thousands of years ago to more recent changes that occurred over hundreds of years. Students also relate changes in greenhouse gas concentrations to warming. The exercise is completed over a 1.5- to 2-week period as the class covers a chapter on climate change.
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Some of the Viking images sent back from Mars in the 1970s …
Some of the Viking images sent back from Mars in the 1970s show tantalizing evidence of dendritic valley networks in some of the oldest terrains on the planet. One of the big questions ever since has been whether it might have rained early in Mars history.
One of the ways of deciding whether the Mars valley networks might have been produced by rainfall is to find out how similar they are to valley networks on Earth, which we know are produced by rainfall. The standard method for analyzing drainage basins is comparison of the number of drainage segments per square kilometer (drainage density) and how extensively branched the network is (stream order).
In this exercise, students calculate stream order for valley segments mapped by Hynek and Phillips (2003) using MOC/MOLA data. Students then use data on valley segment length and drainage basin area from Hynek and Phillips (2003) to calculate drainage density. They compare stream order and drainage density for the Mars site with similar calculations for areas on Earth and evaluate the question of whether valley networks on Mars might be consistent with rainfall on an early Mars, and what the uncertainties and limitations are in their conclusions.
(Note: this resource was added to OER Commons as part of a batch upload of over 2,200 records. If you notice an issue with the quality of the metadata, please let us know by using the 'report' button and we will flag it for consideration.)
This activity illustrates the carbon cycle using an age-appropriate hook, and it …
This activity illustrates the carbon cycle using an age-appropriate hook, and it includes thorough discussion and hands-on experimentation. Students learn about the geological (ancient) carbon cycle; they investigate the role of dinosaurs in the carbon cycle, and the eventual storage of carbon in the form of chalk. Students discover how the carbon cycle has been occurring for millions of years and is necessary for life on Earth. Finally, they may extend their knowledge to the concept of global warming and how engineers are working to understand the carbon cycle and reduce harmful carbon dioxide emissions.
This activity engages students with the concept of Direct Air Capture. Students …
This activity engages students with the concept of Direct Air Capture. Students watch an engaging film, participate in a reading and writing activity, and then model carbon dioxide adsorption/desorption in an exciting lab.
Students design and conduct experiments to determine what environmental factors favor decomposition …
Students design and conduct experiments to determine what environmental factors favor decomposition by soil microbes. They use chunks of carrots for the materials to be decomposed, and their experiments are carried out in plastic bags filled with dirt. Every few days students remove the carrots from the dirt and weigh them. Depending on the experimental conditions, after a few weeks most of the carrots will have decomposed completely.
In recent years, the redistribution of risk has created conditions for natural …
In recent years, the redistribution of risk has created conditions for natural and technological disasters to become more widespread, more difficult to manage, and more discriminatory in their effects. Policy and planning decision-makers frequently focus on the impact that human settlement patterns, land use decisions, and risky technologies can have on vulnerable populations. However, to ensure safety and promote equity, they also must be familiar with the social and political dynamics that are present at each stage of the disaster management cycle. Therefore, this course will provide students with: An understanding of the breadth of factors that give rise to disaster vulnerability; and A foundation for assessing and managing the social and political processes associated with disaster policy and planning.
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