Keywords: Dams (16)

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Andy Darvill's Science Site: Energy Resources
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Andy Darvill's Science Site: Energy Resources

This award-winning web page is devoted to the study of energy sources, ... (more)

This award-winning web page is devoted to the study of energy sources, both renewable and non-renewable. It features multimedia content on nine sources of energy: fossil fuels, solar, wind, geothermal, nuclear, biomass, hydroelectric, tidal, and ocean waves. Each section is supported with video clips, diagrams, schematics, and images of how the energy source is used to deliver power. The author discusses advantages/disadvantages of each energy source and provides links to additional information for extended learning. The content of this resource is written at a Grade 9 level. Extensive integration of video, diagrams, and schematic drawings makes the collection especially appropriate for accommodating a variety of levels and learning modalities. (less)

Subject:
History, Law, Politics
Ecology
Engineering
Forestry and Agriculture
Geoscience
Physics
Space Science
Technology
Social Sciences
Material Type:
Images and Illustrations
Instructional Material
Reference
Provider:
ComPADRE Digital Library
Provider Set:
ComPADRE Classroom-Ready Resources
Author:
Andy Darvill
Breakwaters and Closure Dams
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Breakwaters and Closure Dams

Design and construction of breakwaters and closure dams in estuaries and rivers. ... (more)

Design and construction of breakwaters and closure dams in estuaries and rivers. Functional requirements, determination of boundary conditions, spatial and constructional design and construction aspects of breakwaters and dams consisting of rock, sand and caissons. (less)

Subject:
Science and Technology
Material Type:
Assessments
Lecture Notes
Readings
Textbooks
Provider:
TU Delft OpenCourseWare
Author:
Ir. H.J. Verhagen
Build Your Own Hydroelectric Generator
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Build Your Own Hydroelectric Generator

Learners follow directions to construct a water-powered electrical generator using a turbine ... (more)

Learners follow directions to construct a water-powered electrical generator using a turbine made from plastic spoons. The model generates a surprising amount of electricity, enough to light a small light bulb, and closely resembles real micro-hydro designs. Use this activity to introduce learners to renewable energy and water as a source of energy. Main webpage includes links to other related resources. Adult supervision recommended. (less)

Subject:
Chemistry
Ecology
Engineering
Forestry and Agriculture
Geoscience
Physics
Technology
Social Sciences
Material Type:
Activities and Labs
Data
Instructional Material
Provider:
Science and Math Informal Learning Educators (SMILE)
Provider Set:
SMILE Pathway: Science and Math Activities in One Search
Author:
GreenLearning Canada
Bureau of Reclamation Historic Dams and Water Projects
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Bureau of Reclamation Historic Dams and Water Projects

Explore the history of water in the West and visit the historic ... (more)

Explore the history of water in the West and visit the historic dams and water projects that created the West we know today. The Bureau of Reclamation Historic Dams and Water Projects Discover Our Shared Heritage Travel Itinerary was produced by the National Park Service's Heritage Education Services and its Intermountain Region Heritage Partnerships Program, in partnership with the Bureau of Reclamation and the National Conference of State Historic Preservation Officers. (less)

Subject:
Humanities
Science and Technology
Social Sciences
Education
Material Type:
Images and Illustrations
Primary Source
Readings
Provider:
Bureau of Land Management, Department of the Interior
Internet Scout Project
Provider Set:
National Park Service
Internet Scout Project
Dramatic Declines in North Atlantic Diadromous Fishes
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Dramatic Declines in North Atlantic Diadromous Fishes

We examined the status of diadromous (migratory between saltwater and freshwater) fishes ... (more)

We examined the status of diadromous (migratory between saltwater and freshwater) fishes within the North Atlantic basin, a region of pronounced declines in fisheries for many obligate marine species. Data on these 24 diadromous (22 anadromous, 2 catadromous) species are sparse, except for a few high-value forms. For 35 time series, relative abundances had dropped to less than 98% of historic levels in 13, and to less than 90% in an additional 11. Most reached their lowest levels near the end of the observation period. Many populations persist at sharply reduced levels, but all species had suffered population extirpations, and many species are now classified as threatened or endangered. Habitat loss (especially damming), overfishing, pollution, and, increasingly, climate change, nonnative species, and aquaculture contributed to declines in this group. For those diadromous fishes for which data exist, we show that populations have declined dramatically from original baselines. We also discuss the consequences of these changes in terms of lost ecosystem services. (less)

Subject:
Ecology
Forestry and Agriculture
Geoscience
Life Science
Material Type:
Reference
Provider:
BiosciEdNet (BEN): Digital Library Portal for Teaching and Learning in the Biological Sciences
Provider Set:
BiosciEdNet (BEN): Digital Library Portal for Teaching and Learning in the Biological Sciences
Author:
John Waldman (City University of New York;Queens College)
Karin Limburg (SUNY Syracuse;College of Environmental Science and Forestry)
Ecosystem Services - Water Purification
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Ecosystem Services - Water Purification

This lesson, provided by Science NetLinks, teaches students the importance of healthy ... (more)

This lesson, provided by Science NetLinks, teaches students the importance of healthy ecosystems by investigating the example of natural water purification. Students will learn how ecosystems remove pollution from the water and how much it costs humans to do this artificially once ecosystems are no longer healthy. The class will then create a "River Newspaper" reporting on the condition of the local environment. (less)

Subject:
Science and Technology
Social Sciences
Material Type:
Lesson Plans
Teaching and Learning Strategies
Provider:
AAAS
Provider Set:
Science Netlinks
Environmental Impact
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Environmental Impact

The Gold Rush, positive for California in so many ways, had a ... (more)

The Gold Rush, positive for California in so many ways, had a devastating effect on the state's environment. Many of these problems were directly related to gold-mining technology. The process of hydraulic mining, which became popular in the 1850s, caused irreparable environmental destruction. Two images show California's largest hydraulic mine ? Malakoff Diggings, in Nevada County ? in action. (Malakoff Diggings is now a state park and open to visitors.) Dams (such as the English Dam in Nevada County, shown in one photograph), which were constructed to help supply water to the mines during the dry summer months, changed the course of rivers. The sediment washed away by hydraulic mining clogged riverbeds and lakes, threatening agriculture throughout the Central Valley. Conflicts over water arose between mining and farming interests. Hydraulic mining essentially came to an end in 1884 with the Sawyer Decision, legislation passed to resolve this conflict. The mining industry also needed a great deal of wood, both to fuel the boilers at the mines and to build extensive canal systems. This demand for lumber helped create the logging industry. California's forests had plenty of trees to log, many quite large. The lithograph "The Stump and Trunk of the Mammoth Tree of Calaveras" depicts a society ball at which 32 people danced on the stump of a giant sequoia tree. Photographer Carleton E. Watkins was well known for his images of the grand views of the West. He was the first to capture Yosemite on film, and helped shape how people throughout the country and the world viewed California. He took many of the broad landscape photos in this group. Watkins also made use of the new technology of the day to create stereoscopic views, including the image of the Malakoff Diggings. There are also several Daguerreotypes in this topic. They include a portrait of John A. Sutter (at whose mill gold was first discovered); miners at work; miners with equipment; and general scenes of mining operations. (less)

Subject:
Social Sciences
Material Type:
Images and Illustrations
Lesson Plans
Primary Source
Readings
Teaching and Learning Strategies
Provider:
University of California
Provider Set:
Calisphere - California Digital Library
Geoguide - Dams
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Geoguide - Dams

This site explains why and how people build dams and explores the ... (more)

This site explains why and how people build dams and explores the positive and negative impacts a dam may have on a community, offering questions to probe further. This look at building a dam complements "Down The Zambezi" in the October 1997 issue of National Geographic. The article describes a visit to Africa's Kariba Dam. Also available are teacher-contributed ideas for classroom and familiy activities; some are aligned with the National Geography Education Standards. (less)

Subject:
History, Law, Politics
Chemistry
Geoscience
Physics
Space Science
Technology
Social Sciences
Material Type:
Activities and Labs
Instructional Material
Interactive
Lesson Plans
Reference
Provider:
UCAR Staff
Provider Set:
Digital Water Education Library (DWEL)
DLESE Community Collection
Global Freshwater Crisis, Spring 2011
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Global Freshwater Crisis, Spring 2011

For the first time in history, the global demand for freshwater is ... (more)

For the first time in history, the global demand for freshwater is overtaking its supply in many parts of the world. The U.N. predicts that by 2025, more than half of the countries in the world will be experiencing water stress or outright shortages. Lack of water can cause disease, food shortages, starvation, migrations, political conflict, and even lead to war. Models of cooperation, both historic and contemporary, show the way forward. The first half of the course details the multiple facets of the water crisis. Topics include water systems, water transfers, dams, pollution, climate change, scarcity, water conflict/cooperation, food security, and agriculture. The second half of the course describes innovative solutions: Adaptive technologies and adaptation through policy, planning, management, economic tools, and finally, human behaviors required to preserve this precious and imperiled resource. Several field trips to water/wastewater/biosolids reuse and water-energy sites will help us to better comprehend both local and international challenges and solutions. (less)

Subject:
Science and Technology
Social Sciences
Material Type:
Full Course
Homework and Assignments
Lecture Notes
Readings
Syllabi
Provider:
M.I.T.
Provider Set:
MIT OpenCourseWare
Author:
Murcott, Susan
How Will Climate Change Affect the Ecosystem of the San Francisco Estuary? Lecture by Dr. Wim Kimmerer, SFSU
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How Will Climate Change Affect the Ecosystem of the San Francisco Estuary? Lecture by Dr. Wim Kimmerer, SFSU

This lecture by Dr. Wim Kimmerer, research professor at the Romberg Tiburon ... (more)

This lecture by Dr. Wim Kimmerer, research professor at the Romberg Tiburon Center, San Francisco State University, presents data and evidence for climate related change in the San Francisco Estuary. Lecture was developed for teachers and educators participating in Our Changing Ocean and Estuaries Series. (less)

Subject:
Science and Technology
Material Type:
Lecture Notes
Other
Provider:
Romberg Tiburon Center, San Francisco State Univeristy
Provider Set:
Our Changing Ocean and Estuaries
Author:
Dr. Wim Kimmerer
Making Rivers
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Making Rivers

In this outdoor water activity, learners explore how to change the direction ... (more)

In this outdoor water activity, learners explore how to change the direction of water flow. Learners make puddles in dirt or use existing puddles and sticks to make water flow. Learners will use yarn to measure who can make the longest "river." Learners will also investigate how they can change the direction water flows by digging paths or building walls and dams. This activity is part of the curriculum Explore Water, related to Peep and the Big Wide World, a preschool science series on public television. The activity starts on page 35 of the PDF. (less)

Subject:
Mathematics
Chemistry
Ecology
Engineering
Forestry and Agriculture
Geoscience
Life Science
Physics
Technology
Social Sciences
Education
Material Type:
Activities and Labs
Instructional Material
Lesson Plans
Provider:
Science and Math Informal Learning Educators (SMILE)
Provider Set:
SMILE Pathway: Science and Math Activities in One Search
Author:
National Science Foundation
WGBH
WGBH Educational Foundation
NEED Project: Energy of Moving Water
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NEED Project: Energy of Moving Water

This resource for middle school provides 13 complete lessons for teaching about ... (more)

This resource for middle school provides 13 complete lessons for teaching about hydropower and conversion of moving water to electrical energy. The unit crosses the curriculum to include physical science, engineering design, earth systems, language arts, social studies and math. As with all NEED educational materials, this resource includes every component required for immediate classroom use: lesson plans, illustrated lab procedures, rubric, pre and post-test assessments, age-appropriate background information, worksheets, graphics for classroom projection, and student guidebooks. Specific physical science objectives revolve around energy flow in systems and the concept that energy is never destroyed, but can be converted from one form to another. Each investigation requires students to first read about the topic in "infobooks" (included in the materials), then make predictions, complete the lab, record data, and write a conclusion. The NEED Project is a national initiative to bring innovative curriculum materials in energy education to K-12 teachers and learners. (less)

Subject:
Chemistry
Ecology
Engineering
Forestry and Agriculture
Geoscience
Life Science
Physics
Space Science
Technology
Education
Material Type:
Activities and Labs
Assessments
Images and Illustrations
Instructional Material
Lesson Plans
Student Guide
Textbooks
Provider:
ComPADRE Digital Library
Provider Set:
ComPADRE Classroom-Ready Resources
Sharing Water Between Dams
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Sharing Water Between Dams

In this video segment from PEEP and the Big Wide World, children ... (more)

In this video segment from PEEP and the Big Wide World, children figure out how to control the flow of water so it supplies two dams. ***Access to Teacher's Domain content now requires free login to PBS Learning Media. (less)

Subject:
Science and Technology
Engineering
Geoscience
Space Science
Technology
Education
Material Type:
Activities and Labs
Provider:
PBS LearningMedia
PBS Learning Media
Provider Set:
PBS Learning Media: Multimedia Resources for the Classroom and Professional Development
Teachers' Domain
Author:
Argosy Foundation
WGBH Educational Foundation
Wilderness and American Identity
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Wilderness and American Identity

This site offers an extensive collection of links to sites about water, ... (more)

This site offers an extensive collection of links to sites about water, life, and agriculture in the American West. Some of the articles are from the 19th century, when the arid, western United States was settled. Other pieces are more current and show how indigenous peoples of North America have survived in hostile terrains. (less)

Subject:
History, Law, Politics
Chemistry
Ecology
Forestry and Agriculture
Geoscience
Physics
Space Science
Social Sciences
Material Type:
Reference
Provider:
UCAR Staff
Provider Set:
Digital Water Education Library (DWEL)
A dam in the middle of a river
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A dam in the middle of a river

Dams have negative impacts on the plants and animals that have adapted ... (more)

Dams have negative impacts on the plants and animals that have adapted to the specific movement of natural rivers and streams. Dams also cause temperature changes, erosion, and movement of sediment that are deadly to many organisms. (less)

Subject:
Science and Technology
Ecology
Forestry and Agriculture
Geoscience
Material Type:
Images and Illustrations
Provider:
BiosciEdNet (BEN): Digital Library Portal for Teaching and Learning in the Biological Sciences
State of Michigan
Provider Set:
BiosciEdNet (BEN): Digital Library Portal for Teaching and Learning in the Biological Sciences
Video and Image Data Access
Author:
Katie Hale (California State University, Fullerton;Student, Biological Sciences)
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2002 llaF ,gnivloS melborP gnireenignE dna sretupmoC ot noitcudortnI

.desu si egaugnal gnimmargorp avaJ ehT .gninnalp dna ,tnemeganam ,ecneics ,gnireenigne ni ... (more)

.desu si egaugnal gnimmargorp avaJ ehT .gninnalp dna ,tnemeganam ,ecneics ,gnireenigne ni smelborp gnivlos rof seuqinhcet gnipoleved no si sisahpmE .scipot decnavda detceles dna scihparg retupmoc ,gnihcraes dna gnitros ,serutcurts atad ,sdohtem laciremun ,secafretni resu lacihparg ,stpecnoc gnimmargorp revoc smelborp gnimmargorp ylkeeW .esruoc eht fo sucof eht si tnempoleved dna ngised erawtfos detneiro-tcejbO .snoitacilppa cifitneics dna gnireenigne rof sdohtem lanoitatupmoc dna tnempoleved erawtfos latnemadnuf stneserp esruoc sihT (less)