Surface tension accounts for many of the interesting properties we associate with water. By learning about surface tension and adhesive forces, students learn why liquid jets of water break into droplets rather than staying in a continuous stream. Through hands-on activities, students learn how the combination of adhesive forces and cohesive forces cause capillary motion. They study different effects of capillary motion and use capillary motion to measure surface tension. Students explore the phenomena of wetting and hydrophobic and hydrophilic surfaces and see how water's behavior changes when a surface is treated with different coatings. A lotus leaf is a natural example of a superhydrophobic surface, with its water-repellent, self-cleaning characteristics. Students examine the lotus effect on natural leaves and human-made superhydrophobic surfaces, and explore how the lotus leaf repels dewy water through vibration. See the Unit Overview section for details on each lesson in this unit.

Project Description (Microsoft Word 14kB Jan26 10)
Water collection and usage in the Sustainable SW Japanese Garden

The Albuquerque Water Authority has several activities on their web site to help with making a personal water audit, selecting xeriscape plants, designing garden areas as well as forms for rebates. We used the ABQ Water Authority design format to calculate which plants to install. Students start with a personal water audit and then move to the design of the garden.
Personal water audit http://www.abcwua.org/Understanding_Your_Bill.aspx
Techniques to consevere water outdoors http://www.abcwua.org/Save_Water_Outdoors.aspx
Planning Xeriscape - students create their own personal garden and we transfer the concepts to the Japanese Garden. We are looking at Japanese design elements with a SW flare and thereby modeling what the internees did when they were limited to the surrounding rock, vegetation and water collection. http://www.abcwua.org/Xeriscaping.aspx

Calculating roof area using a Google satellite image

We use a measurable square on the pathway for the scale and then we calculate the square feet of the roof area. A transparency is used to overlay the image and calculate the water harvest.

Calculating the capacity of the 1500 gallon cistern in terms of water needed per plant

Students experiment with buckets to see ascertain the best collection site. The water is measured after rainfalls and compared to the weather data collected by the NOAA.

(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.)

Students are introduced to the basic biology behind Pacific salmon migration and the many engineered Columbia River dam structures that aid in their passage through the river's hydroelectric dams. Students apply what they learn about the salmon life cycle as they think of devices and modifications that might be implemented at dams to aid in the natural cycle of fish migration, and as they make (hypothetical) Splash Engineering presentations about their proposed fish mitigation solutions for Birdseye River's dam in Thirsty County.

To prepare to view the TCE animation, students could view the 'A Civil Action' movie and the instructor could read to them excerpts from the trial testimony and images from Woburn, wells G and H, geologic materials, geologic cross sections, the trial participants, and the federal courtroom in Boston (available as a attachment to this activity and at a website listed below). The discussion in Bair (2001) about scientists in the courtroom, the specific (excerpted) testimony presented by the three expert witnesses in the 'A Civil Action' trial, a chart summarizing the differences in their testimony, and the views of a federal judge on the goal of science versus the goal of a civil trial may also be worthwhile reading by the class prior to the assignment.

The instructor could also show students the large plates included in the USGS report by Myette and others (1987) that display potentiometric data and contours before and after the famous aquifer test performed in December 1985 and January 1986, just before the trial, and discuss the ramifications of having only two sets of water-level measurements to characterize all the changes in the flow system between 1964 and 1979, when wells G and H periodically operated. This makes students consider the substantial differences in making predictions based on a steady-state conceptualization of the flow system or a transient conceptualization.

The instructor could also show the animation of induced infiltration from the Aberjona River to wells G and H that also was created by Martin van Oort (M.S., 2005) and based on the research of Maura Metheny (M.S., 1998; Ph.D., 2004) at Ohio State University. Viewing both animations enables students to see that the water produced by wells G and H is a highly transient mixture derived from many different source areas within the valley.

The article by Bair and Metheny (2002) concerning the remediation activities at the Wells G & H Superfund Site could be used to show how groundwater contamination is cleaned up, why different remediation schemes needed to be used in different hydrogeologic settings, and why cleanup to U.S. EPA standards can take decades.

(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.)

Students use spreadsheets to analyze the reasons why New Orleans has subsided in the past 250 years.

This classroom activity is aimed at an understanding of different ecosystems by understanding the influence of temperature and precipitation. Students correlate graphs of vegetation vigor with those of temperature and precipitation data for four diverse ecosystems, ranging from near-equatorial to polar, and spanning both hemispheres to determine which climatic factor is limiting growth.

This guided inquiry investigation will show students how water moves through the water cycle, and how it affects plant life.

Learners will read or listen to a story about two sisters, Marisol and Sofia, as they explore the Sun's role in the water cycle. Additionally, numerous extension resources are included in the accompanying educator guide, such as suggestions for no-cost language arts activities, links to further science activities, a book walk cue chart to guide classroom discussion before, during, and after the story, a graphic organizer, and alignments to the National Science Education Standards (NSES) and the Next Generation Science Standards (NGSS).

The Tippy Tap hand-washing station is an inexpensive and effective device used extensively in the developing world. One shortcoming of the homemade device is that it must be manually refilled with water and therefore is of limited use in high-traffic areas. In this activity, student teams design, prototype and test piping systems to transport water from a storage tank to an existing Tippy Tap hand-washing station, thereby creating a more efficient hand-washing station. Through this example service-learning engineering project, students learn basic fluid dynamic principles that are needed for creating efficient piping systems.

Using real data from NASA's GRACE satellites, students will track water mass changes in the U.S., data that measures changes in ice, surface and especially groundwater. The background information includes an animated video about where water exists and how it moves around Earth, as well as short video clips to introduce the GRACE mission and explain how satellites collect data. Students will estimate water resources using heat-map data, create a line graph for a specific location, then assess trends and discuss implications.

This activity illustrates the importance of water resources and how changes in climate are closely linked to changes in water resources. The activity could fit into many parts of a science curriculum, for example a unit on water could be connected to climate change.

This class serves as an introduction to mass transport in environmental flows, with emphasis given to river and lake systems. The class will cover the derivation and solutions to the differential form of mass conservation equations. Class topics to be covered will include: molecular and turbulent diffusion, boundary layers, dissolution, bed-water exchange, air-water exchange and particle transport.

This class serves as an introduction to mass transport in environmental flows, with emphasis given to river and lake systems. The class will cover the derivation and solutions to the differential form of mass conservation equations. Class topics to be covered will include: molecular and turbulent diffusion, boundary layers, dissolution, bed-water exchange, air-water exchange and particle transport.

The Ocean Wise Howe Sound Education Kit Is available in multiple grade editions, all in French and English and include both a student work book and teacher accompanying guidebook. Each kit features several lessons on the unique UNESCO heritage site of the Howe Sound environment.

Átl’ḵa7tsem/Txwnéwu7ts/ Howe Sound is a coastal fjord ecosystem in the Salish Sea. It is a vital area to First Nation communities, providing natural resources that allowed Indigenous peoples to thrive for generations before colonization. Following colonization and years of destructive human activity, such as industrial and coastal development, efforts are currently underway by government, industry groups, and local communities to transition the Sound’s marine ecosystem from crisis to recovery. Indigenous communities, in particular, are working hard to restore life and traditional practices for generations to come.

Using Átl’ḵa7tsem/ Txwnéwu7ts/ Howe Sound as a case study, students can recognize how ecosystems, species, human impact, and climate change are interconnected. This work is essential for students to make informed decisions as the future stewards of our planet.

An interactive reference work on the UN Sustainable Development Goals with short introductions to the goals, the official translations and numbering of the 17 goals and the 169 underlying targets, zoom in / zoom out at goal or target level, powerful search function, and "deep" hyperlinks to the UN website about the goals.Compact and online available interactive reference work that can be useful in all kinds of learning activities related to the SDGs.Currently available in English, Spanish, French and Dutch.Free to use online, but also to download and "embed" in other websites (HTML5); the source code is also freely available (MMAP).

An interactive reference work on the UN Sustainable Development Goals with short introductions to the goals, the official translations and numbering of the 17 goals and the 169 underlying targets, zoom in / zoom out at goal or target level, powerful search function, and "deep" hyperlinks to the UN website about the goals.Compact and online available interactive reference work that can be useful in all kinds of learning activities related to the SDGs.Currently available in English, Spanish, French and Dutch.Free to use online, but also to download and "embed" in other websites (HTML5); the source code is also freely available (MMAP).

Groundwater is one of the largest sources of drinking water, so environmental engineers need to understand groundwater flow in order to tap into this important resource. Environmental engineers also study groundwater to predict where pollution from the surface may end up. In this lesson, students will learn how water flows through the ground, what an aquifer is and what soil properties are used to predict groundwater flow.

In this activity, students focus on ecosystem services specifically related to the hydrologic cycle. Using rainfall-runoff data for a small watershed in Ohio, students are introduced to the technical vocabulary associated with watersheds, watershed hydrology, and water balance. Working with hydrologic data will enable the students to test their understanding of watershed hydrology and the water balance equation, which is a measure of how much water is stored within different parts of the watershed.

(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.)

Students will conduct a virtual exploration of Harrier Meadow, a saltmarsh in the New Jersey Meadowlands. They will identify its vulnerability to pollution, its tidal connection to the Hackensack Estuary and the Atlantic Ocean along with its proximity to New York City. Vegetation patterns within this wetland will be explored, focusing on a salinity tolerant native plant (Pickleweed) that is returning to the marsh. The return of such native species is critically important to wetland restoration efforts that aim to reclaim native habitat following decades of environmental degradation since the industrial revolution. These vegetation patterns are the focus of resistivity and electromagnetic surveys that the students explore in the subsequent units of this module. The geophysical surveys aim to better understand the underlying factors controlling the distribution of Pickleweed. By understanding where the Pickleweed is thriving, restoration efforts could subsequently be improved by locating regions of such wetlands with similar underlying factors where Pickleweed (and other native plants) could be successfully reintroduced. In the first unit of this module, students will use Google Earth (on the web), high-resolution video acquired from an Unmanned Aerial Vehicle (UAV) and an ArcGIS Storymap in their exploration. Primary outcome: students comprehend the association between salinity and Pickleweed and formulate plans to test a hypothesis for Pickleweed persistence/patterning in Harrier Meadow that will ultimately be implemented using near surface geophysical methods in the remaining units of the module.

(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.)

How does water move throughout the Earth system? How do scientists measure the amount of water that moves through these pathways? This unit provides an alternative way for students to learn the major components of Earth's water cycle, which includes actively thinking about how we measure the water system. In this unit, students annotate a schematic diagram to identify the major reservoirs and fluxes in the hydrosphere. They also work in teams of different "experts" to identify traditional and geodetic techniques that are used to measure components of the hydrosphere and the changes over time. Using their recently acquired knowledge about these techniques, they make inferences about which methods are best for measuring different components of the hydrosphere. Measurement methods include stream gauges, groundwater wells, snow pillows, vertical GPS changes, reflection GPS for snow depth, and GRACE satellite (Gravity Recovery and Climate Experiment).

Show more about Online Teaching suggestions
Hide
Online-adaptable: Main exercise is a jigsawactivity that could be done in an online course but student groups with online collaboration (probably synchronous) would need to be organized OR the exercise would need to be adapted away from group format.

(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.)

Students will investigate the history of the environmental justice movement in the United States by situating it within the context of the US civil rights and environmental movements. The unit also makes connections to issues of environmental equity on a global scale. Student-centered discussions will connect environmental justice with the scientific background of the issues, and in particular its interrelatedness with hydrologic concepts.

(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.)