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Figure 2.15 (OpenStax, Biology 2e) caption: When we mix table salt (NaCl) in water, it forms spheres of hydration around the ions.
(Source: OpenStax)
Figure 2.9 (OpenStax, Biology 2e) caption: Two or more atoms may bond with each other to form a molecule. When two hydrogens and an oxygen share electrons via covalent bonds it forms a water molecule.
Part of the "Green Careers" series. Presents an overview of job opportunities in water management, such as flood control, reservoir management, levee design and repair, designing and operating dams and sewer systems, river management and restoration, monitoring fish populations, protecting habitats and endangered species, maintaining natural resources, water conservation, irrigation, landscape design, and more. Jobs profiled include the following: civil engineer, water resource manager, water conservation specialist, and landscaper.
(Source: DCMP)
In the Rosebud River valley, an hour east of Calgary, the water in many homes can be lit on fire. Everyone agrees there's gas in the water. Few agree on why. At Fiona Lauridsen's farm, just outside the hamlet of Rosebud, showering has become a dangerous activity. Fiona and her family developed skin burns from simply taking a shower and Fiona claims that EnCana, Canada's largest natural gas company is responsible. She claims that EnCana has contaminated the aquifer by drilling (fracking) for coal bed methane, a new source of natural gas extraction that often uses chemicals for drilling. Yet in the hamlet, where the Rosebud Theatre is a popular tourist attraction and graciously sponsored by EnCana, most residents refuse to even talk about burning water, for fear of harming the tourist industry.
Investigates both saltwater and freshwater biomes. Explores how ocean temperature, salinity, and depth affect the enormous diversity of marine life. Covers the intertidal, neritic, and open ocean zones and their characteristics. Also examines estuaries and freshwater biomes such as streams, lakes, and ponds. Defines terms and concepts, and reviews content before a quiz.
Water has many everyday uses. Students get a glimpse of all the uses of water and explore its basic characteristics.
Parakeet talks about the importance of water for animals. Amanda chokes on an "almojabana" (cheese roll) and asks for a glass of water, but is told there is no water. The first guest, the wolf, says he could not finish bathing because the water ran out; he is still full of soap. He accuses the duck of using up all the water because she's always wet. The duck explains she, too, has no water, and someone else must be responsible for the drought in the forest. The fleas show a documentary on water and explain how humans waste it thinking it will never end. Ludovico interview some otters. The celebrity guest, Crispiano Donaldo, says his team lost a soccer game because he drank all the water and left his teammates dehydrated.
What happens to water once it goes down the drain? Suzie shrinks Hanna and Olli so they can get a closer look. They travel through the sewers to the water treatment plant and learn what happens to dirty water. Part of "My Little Planet" series.
Introduces water and its properties and uses. Shows water's three forms: liquid, gas, and solid and how it changes form through evaporation, condensation, and freezing. Emphasizes that all living things need water to survive. Demonstrates the water cycle and discusses ways people use this essential liquid.
Diver Jill Heirnerth and a team of explorers and scientists explore the massive hidden underground rivers, caverns, and waters of the Floridan aquifer. The aquifer is essential for millions of people, and the team wants to study the impacts of generations of agriculture and urbanization. They are also checking the overall health of the aquifer.
Everywhere one looks in Southern Louisiana there's water: rivers, bayous, swamps, the Mississippi River, and the Gulf of Mexico. And everyone in Cajun Country has a water story, or two or three or more. Its waterways support the biggest economies in Louisiana - a $70 billion a year oil and gas industry, a $2.4 billion a year fishing business, tourism and recreational sports. But these waterways are also home to some insidious polluters along a 100-mile-long stretch of the Mississippi known "Cancer Alley," the world's largest Dead Zone in the Gulf of Mexico and erosion that is costing the coastline twenty five square miles of wetlands a year.
Water diffuses by osmosis from an area of high water potential to an area of low water potential through the water potential gradient. Join Pinky and Petunia as they discuss examples of osmosis. Part of "The Amoeba Sisters" series.
Water fleas are crustaceans, and they are the foundation for the web of life in water ecosystems. They are the most plentiful food source for other water ecosystem organisms. One of nine segments in a series, with all nine available on a DVD.
What does it take to estimate how much water a large city will need 25 years into the future? The chief of urban water conservation for the state of California explains the challenges of supplying water to a growing population of millions, much of which lives in the desert.
Where does the water from sinks and showers come from? Join host Joel Greene as he explores how many cities capture and treat rain water and snow melt. The treated water is then pumped into homes. Part of the Curiosity Quest Series.
University of South Florida engineering professor Norma Alcantar and her team are using the Prickly Pear Cacti to clean up oil and other toxins from water. With support from the National Science Foundation, Alcantar has spent the last few years confirming something that her grandmother told her years ago – that cacti can purify water. The objectives of this research are to develop a water purification system based on an economically feasible method of water purification.
Shows the crucial part water plays in the body's functioning and the system for keeping it in balance. Drinking, sweating, and breathing are covered. The urinary tract is analyzed in detail, with particular attention to the functioning of the kidneys.
Emergency Integrated Lifesaving Lanyard (EMILY) is called into action by lifeguards and emergency response teams around the world for water rescues. With support from the National Science Foundation, roboticist Robin Murphy of Texas A&M University and her colleagues are developing some upgrades to make EMILY and other rescue robots "smarter" for large-scale water rescues, such as a capsized ferry or water taxi. Part of the "Science Nation" series.
At the Boulder Atmospheric Observatory tower, a team of scientists analyzes the isotope composition of water vapor and precipitation. The isotopes provide information about the source region of the water. The scientists can determine the extent to which rainwater comes directly from the ocean, evaporation, or plant transpiration.
Already parts of the world suffer from lack of water, and with increasing demand it's expected to get worse. To better understand and predict drought, thirty universities are collaborating in a multidisciplinary effort called the Shale Hills Project. Among the studies, is field research following the life cycle of water along the Susquehanna River Basin. With support from the National Science Foundation, civil engineer Chris Duffy and his team at Penn State are tracking several aspects of rainfall to better understand the relationship between the flow of water, drought prone areas, and urban populations.
Showing collections 1 to 6 of 6
A collection of Chemistry related resources
A collection containing 67 resources, curated by Benetech
Resources to teach younger students about animals
A collection containing 58 resources, curated by DIAGRAM Center
Biology related concepts
A collection containing 59 resources, curated by Benetech
A collection of simulations from PhET.
A collection containing 15 resources, curated by Charles LaPierre
Collection of anatomy resources
A collection containing 21 resources, curated by Benetech
3D models and images of the entire periodic table of elements
A collection containing 118 resources, curated by Library Lyna
