Updating search results...

Search Resources

163 Results

View
Selected filters:
  • water
Sugar and Salt Solutions
Unrestricted Use
CC BY
Rating
0.0 stars

What happens when sugar and salt are added to water? Pour in sugar, shake in salt, and evaporate water to see the effects on concentration and conductivity. Zoom in to see how different sugar and salt compounds dissolve. Zoom in again to explore the role of water.

Subject:
Chemistry
Physical Science
Material Type:
Simulation
Provider:
University of Colorado Boulder
Provider Set:
PhET Interactive Simulations
Author:
Emily Moore
Julia Chamberlain
Kathy Perkins
Kelly Lancaster
Robert Parson
Sam Reid
Trish Loeblein
Date Added:
10/12/2011
Sun, Wind, Water, Earth, Life, Living
Conditional Remix & Share Permitted
CC BY-NC-SA
Rating
0.0 stars

The course aims is to understand the relation between urban design and planning and the aspects of: - sun, energy and plants - wind, sound and noise - water, traffic and other networks - earth, soil and site preparation - life, ecology and nature preservation - living, human density, economy and environment These themes in sustainable urban engineering are related to legends for design, described in a wide variety of lecture papers (720 pages, 1000 figures, 200 references, 5000 key words, 400 questions), accompanied by interactive Excel computer programmes to get quantitative insight. The assignment is an evaluation of an own earlier and future design work integrating sun, plantation, wind, noise, water, traffic, earth, land preparation, cables and pipes, life, natural differentiation, living, density, environment and proposing new legends for design. Study Goals The student: - is able to link urban interventions to urban development technology and within that interrelate urban designers to relevant technical specialists - is able to integrating sun, plantation, wind, noise, water, traffic, earth, land preparation, cables and pipes, life, natural differentiation, living, density, environment - is able to develop new legends for design from the perspective of sustainable urban engineering

Subject:
Applied Science
Architecture and Design
Environmental Science
Material Type:
Full Course
Provider:
Delft University of Technology
Provider Set:
Delft University OpenCourseWare
Author:
T.M. de Jong
Date Added:
02/02/2016
Superhydrophobicity: The Lotus Effect
Read the Fine Print
Educational Use
Rating
0.0 stars

Students are introduced to superhydrophobic surfaces and the "lotus effect." Water spilled on a superhydrophobic surface does not wet the surface, but simply rolls off. Additionally, as water moves across the superhydrophobic surface, it picks up and carries away any foreign material, such as dust or dirt. Students learn how plants create and use superhydrophobic surfaces in nature and how engineers have created human-made products that mimic the properties of these natural surfaces. They also learn about the tendency of all superhydrophobic surfaces to develop water droplets that do not roll off the surface but become "pinned" under certain conditions, such as water droplets formed from condensation. They see how the introduction of mechanical energy can "unpin" these water droplets and restore the desirable properties of the superhydrophobic surface.

Subject:
Applied Science
Engineering
Hydrology
Physical Science
Material Type:
Lesson Plan
Provider:
TeachEngineering
Provider Set:
TeachEngineering
Author:
Chuan-Hua Chen
Date Added:
09/18/2014
Surface Tension
Read the Fine Print
Educational Use
Rating
0.0 stars

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.

Subject:
Applied Science
Engineering
Hydrology
Physical Science
Material Type:
Full Course
Unit of Study
Provider:
TeachEngineering
Provider Set:
TeachEngineering
Author:
Chuan-Hua Chen
Date Added:
09/18/2014
Surface Tension Basics
Read the Fine Print
Educational Use
Rating
0.0 stars

Students are presented with the question: "Why does a liquid jet break up into droplets?" and introduced to its importance in inkjet printers. A discussion of cohesive forces and surface tension is included, as well as surface acting agents (surfactants) and their ability to weaken the surface tension of water. Students observe the effects of surface tension using common household materials. Finally, students return to the original question through a homework assignment that helps them relate surface tension and surface area to the creation of water droplets from a liquid jet.

Subject:
Applied Science
Engineering
Physical Science
Physics
Material Type:
Lesson Plan
Provider:
TeachEngineering
Provider Set:
TeachEngineering
Author:
Chuan-Hua Chen
Date Added:
09/18/2014
Surface Tension Lab
Read the Fine Print
Educational Use
Rating
0.0 stars

Students extend their understanding of surface tension by exploring the real-world engineering problem of deciding what makes a "good" soap bubble. Student teams first measure this property, and then use this measurement to determine the best soap solution for making bubbles. They experiment with additives to their best soap and water "recipes" to increase the strength or longevity of the bubbles. In a math homework, students perform calculations that explain why soap bubbles form spheres.

Subject:
Applied Science
Engineering
Physical Science
Physics
Material Type:
Activity/Lab
Provider:
TeachEngineering
Provider Set:
TeachEngineering
Author:
Chuan-Hua Chen
Date Added:
09/18/2014
Surface Tension and Suminagashi
Read the Fine Print
Educational Use
Rating
0.0 stars

In an activity that integrates science and art, students see, experience and harness the phenomenon of surface tension as they create beautiful works of art. Students conduct two experiments related to surface tension floating objects on the surface of water and creating original artwork using floating inks. They also learn historical and cultural information through an introduction to the ancient Japanese art form of suminagashi. They take the topic a step further by discussing how an understanding of surface tension can be applied to solve real-world engineering problems and create useful inventions.

Subject:
Applied Science
Arts and Humanities
Engineering
Physical Science
Physics
Material Type:
Activity/Lab
Provider:
TeachEngineering
Provider Set:
TeachEngineering
Author:
David Hu
Steve Shaw
Date Added:
10/14/2015
Surfactants: Helping Molecules Get Along
Read the Fine Print
Educational Use
Rating
0.0 stars

Students learn about the basics of molecules and how they interact with each other. They learn about the idea of polar and non-polar molecules and how they act with other fluids and surfaces. Students acquire a conceptual understanding of surfactant molecules and how they work on a molecular level. They also learn of the importance of surfactants, such as soaps, and their use in everyday life. Through associated activities, students explore how surfactant molecules are able to bring together two substances that typically do not mix, such as oil and water. This lesson and its associated activities are easily scalable for grades 3-12.

Subject:
Applied Science
Education
Engineering
Material Type:
Lesson Plan
Provider:
TeachEngineering
Provider Set:
TeachEngineering
Author:
Ryan Cates
Date Added:
09/18/2014
Survive That Tsunami!
Read the Fine Print
Educational Use
Rating
0.0 stars

Students use a table-top-sized tsunami generator to observe the formation and devastation of a tsunami. They see how a tsunami moves across the ocean and what happens when it reaches the continental shelf. Students make villages of model houses and buildings to test how different material types are impacted by the huge waves. They further discuss how engineers design buildings to survive tsunamis. Much of this activity setup is the same as for the Mini-Landscape activity in Lesson 4 of the Natural Disasters unit.

Subject:
Applied Science
Engineering
Oceanography
Physical Science
Material Type:
Activity/Lab
Provider:
TeachEngineering
Provider Set:
TeachEngineering
Author:
Denise Carlson
Geoffrey Hill
Malinda Schaefer Zarske
Date Added:
10/14/2015
Sustainable Energy: Can Water be the Future Fuel?
Conditional Remix & Share Permitted
CC BY-NC-SA
Rating
0.0 stars

The main objective of this video lesson is to bring the students' attention to the importance of basic and natural sciences in our lives. The lesson will introduce a topic (sustainable energy) that is related mainly to chemistry and is not usually covered directly in a high school curriculum. We hope that this lesson will show students how important and useful the natural and basic sciences are not only for our daily lives, but also for sustainable development. The lesson will present creative and challenging ideas on the topic of alternative energies. It is hoped that students will be inspired by the introduction of these ideas, and that they will develop the confidence to come up with creative ideas themselves. Background for this lesson is based on fundamental concepts in chemistry (mainly), biology, physics and environmental science.

Subject:
Applied Science
Chemistry
Environmental Science
Physical Science
Material Type:
Lecture
Provider:
MIT
Provider Set:
MIT Blossoms
Author:
Ahmad Al-Ajlouni
Date Added:
07/02/2021
Swamp Cooler
Read the Fine Print
Educational Use
Rating
0.0 stars

Using a household fan, cardboard box and paper towels, student teams design and build their own evaporative cooler prototype devices. They learn about the process that cools water during the evaporation of water. They make calculations to determine a room's cooling load, and thus determine the swamp cooler size. This activity adds to students' understanding of the behind-the-scenes mechanical devices that condition and move air within homes and buildings for human health and comfort.

Subject:
Applied Science
Architecture and Design
Engineering
Material Type:
Activity/Lab
Provider:
TeachEngineering
Provider Set:
TeachEngineering
Author:
Denise W. Carlson
Landon B. Gennetten
Lauren Cooper
Malinda Schaefer Zarske
Date Added:
10/14/2015
Swim to and from the Sea!
Read the Fine Print
Educational Use
Rating
0.0 stars

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.

Subject:
Applied Science
Engineering
Hydrology
Physical Science
Material Type:
Lesson Plan
Provider:
TeachEngineering
Provider Set:
TeachEngineering
Author:
Denise W. Carlson
Jeff Lyng
Kristin Field
Lauren Cooper
Date Added:
09/18/2014
Technology and Nature in American History, Spring 2008
Conditional Remix & Share Permitted
CC BY-NC-SA
Rating
0.0 stars

Subject considers how the visual and material world of "nature" has been reshaped by industrial practices, beliefs, structures, and activities. Readings in historical geography, aesthetics, American history, environmental and ecological history, architecture, city planning, and landscape studies. Several field trips planned to visit local industrial landscapes. Assignments involve weekly short, written responses to the readings, and discussion-leading. Final project is a photo-essay on the student's choice of industrial site (photographic experience not necessary).

Subject:
History
U.S. History
Material Type:
Full Course
Provider:
M.I.T.
Provider Set:
M.I.T. OpenCourseWare
Author:
Pietruska, Jamie
Date Added:
01/01/2008
Tension Racers!
Read the Fine Print
Educational Use
Rating
0.0 stars

Students see how different levels of surface tension affect water's ability to move. Teams "race" water droplets down tracks made of different materials, making measurements, collecting data, making calculations, graphing results and comparing to their predictions and the properties of each surface, determining which surface exhibits the highest (or lowest) level of surface tension with water. They apply their results to make engineering recommendations for real-world applications.

Subject:
Applied Science
Education
Engineering
Mathematics
Physical Science
Physics
Material Type:
Activity/Lab
Provider:
TeachEngineering
Provider Set:
TeachEngineering
Author:
Ryan Cates
Date Added:
09/18/2014
Things That Matter to Flocculants
Read the Fine Print
Educational Use
Rating
0.0 stars

Prior to reaching households, water is exposed to a variety of treatments designed to render it fit for human consumption and use. One of the first treatment steps is the removal of suspended solids using chemical additives called flocculants. In this activity, students learn about two commonly used flocculants and clean water collected from a local pond or river. They experiment with flocculant, stirring and pH variables.

Subject:
Applied Science
Chemistry
Ecology
Engineering
Life Science
Physical Science
Material Type:
Activity/Lab
Provider:
TeachEngineering
Provider Set:
TeachEngineering
Author:
Audrey Buttice
Date Added:
09/18/2014
Too Much Pressure!
Read the Fine Print
Educational Use
Rating
0.0 stars

In this activity, students learn how engineers design faucets. Students will learn about water pressure by building a simple system to model faucets and test the relationship between pressure, area and force. This is a great outdoor activity on a warm day.

Subject:
Applied Science
Engineering
Physical Science
Physics
Material Type:
Activity/Lab
Provider:
TeachEngineering
Provider Set:
TeachEngineering
Author:
Chris Sheridan
Jackie Sullivan
Janet Yowell
Malinda Schaefer Zarske
Melissa Straten
Date Added:
10/14/2015
Tracing Fluorescent Plastics in an Aquatic Environment
Read the Fine Print
Educational Use
Rating
0.0 stars

Student teams investigate the migration of small-particle plastic pollution by exposing invertebrates found in water samples from a local lake or river to fluorescent bead fragments in a controlled environment of their own designs. Students begin by reviewing the composition of food webs and considering the ethics of studies on live organisms. In their model microcosms, they set up a food web so as to trace the microbead migration from one invertebrate species to another. Students use blacklights and microscopes to observe and quantify their experimental results. They develop diagrams that explain their investigations—modeling the ecological impacts of microplastics.

Subject:
Applied Science
Engineering
Life Science
Mathematics
Measurement and Data
Material Type:
Activity/Lab
Provider:
TeachEngineering
Provider Set:
Activities
Author:
David Bennett
Sara Hettenbach
William Welch
Date Added:
06/01/2018
Transportation and the Environment
Read the Fine Print
Educational Use
Rating
0.0 stars

Looking at transportation and the environment, students learn that some human-made creations, such as vehicles, can harm the environment. They also learn about alternative fuels and vehicles designed by engineers to minimize pollution. The associated hands-on activity gives students a chance to design their own eco-friendly vehicle.

Subject:
Applied Science
Engineering
Environmental Science
Material Type:
Activity/Lab
Lesson Plan
Provider:
TeachEngineering
Provider Set:
TeachEngineering
Author:
Abigail Watrous
Denali Lander
Janet Yowell
Katherine Beggs
Date Added:
09/18/2014
Tsunami Attack!
Read the Fine Print
Educational Use
Rating
0.0 stars

Students learn about tsunamis, discovering what causes them and what makes them so dangerous. They learn that engineers design detection and warning equipment, as well as structures that that can survive the strong wave forces. In a hands-on activity, students use a table-top-sized tsunami generator to observe the formation and devastation of a tsunami. They see how a tsunami moves across the ocean and what happens when it reaches a coastline. They make villages of model houses to test how different material types are impacted by the huge waves.

Subject:
Applied Science
Atmospheric Science
Engineering
Physical Science
Material Type:
Activity/Lab
Lesson Plan
Provider:
TeachEngineering
Provider Set:
TeachEngineering
Author:
Denise W. Carlson
Geoffrey Hill
Malinda Schaefer Zarske
Date Added:
09/18/2014
Under Pressure
Read the Fine Print
Educational Use
Rating
0.0 stars

Students learn about Pascal's law, an important concept behind the engineering of dam and lock systems, such as the one that Thirsty County wants Splash Engineering to design for the Birdseye River (an ongoing hypothetical engineering scenario). Students observe the behavior of water in plastic water bottles spilling through holes punctured at different heights, seeing the distance water spurts from the holes, learning how water at a given depth exerts equal pressure in all directions, and how water at increasing depths is under increasing pressure.

Subject:
Applied Science
Engineering
Physical Science
Physics
Material Type:
Activity/Lab
Provider:
TeachEngineering
Provider Set:
TeachEngineering
Author:
Denali Lander
Denise W. Carlson
Jeff Lyng
Kristin Field
Lauren Cooper
Megan Podlogar
Timothy M. Dittrich
Date Added:
09/18/2014