Lights, trolleys, skyscrapers, romance, action. These were among the first words to enter the minds of Americans when contemplating the new urban lifestyle. While American cities allowed many middle- and upper-class Americans to live a glamorous lifestyle, this was simply a fantasy to many poorer urban dwellers. Slums, crime, overcrowding, pollution, disease. These words more accurately described daily realities for millions of urban Americans.
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Add acidity to a healthy lake and see what happens to the plants and animals in this interactive activity adapted from EcoKids. ***Access to Teacher's Domain content now requires free login to PBS Learning Media.
- Life Science
- Forestry and Agriculture
- Material Type:
- PBS LearningMedia
- Provider Set:
- PBS Learning Media: Multimedia Resources for the Classroom and Professional Development
- Teachers' Domain
- National Science Foundation
- WGBH Educational Foundation
- Date Added:
Students conduct a simple experiment to model and explore the harmful effects of acid rain (vinegar) on living (green leaf and eggshell) and non-living (paper clip) objects.
Students are introduced to the differences between acids and bases and how to use indicators, such as pH paper and red cabbage juice, to distinguish between them.
More than four million barrels of oil spilled into the Gulf of Mexico during the 87-day period following the explosion at the Deepwater Horizon drilling rig on April 20, 2010. The environmental and social effects of the Gulf Oil Spill will continue to draw the attention of educators for years to come as scientists continue to learn more about The Deepwater Horizon blowout and its impacts over time. Help teach your students about this event using PLT activities.
Students experiment with a new materialâaerogel. Aerogel is a synthetic (human-made) porous ultra-light (low-density) material, in which the liquid component of a gel is replaced with a gas. In this activity, student pairs use aerogel to simulate the environmental engineering application of cleaning up oil spills. In a simple and fun way, this activity incorporates density calculations, the material effects of surface area, and hydrophobic and hydrophilic properties.
The AirData Web site gives you access to air pollution data for the entire United States. Want to know the highest ozone level measured in your state last year? Ever wonder where air pollution monitoring sites are located? Are there sources of air pollution in your town? You can find out here! AirData produces reports and maps of air pollution data based on criteria that you specify.
By watching and performing several simple experiments, students develop an understanding of the properties of air: it has mass, it takes up space, it can move, it exerts pressure, it can do work.
Students are introduced to the concept of air quality by investigating the composition, properties, atmospheric layers and everyday importance of air. They explore the sources and effects of visible and invisible air pollution. By learning some fundamental meteorology concepts (air pressure, barometers, prediction, convection currents, temperature inversions), students learn the impact of weather on air pollution control and prevention. Looking at models and maps, they explore the consequences of pollutant transport via weather and water cycles. Students are introduced to acids, bases and pH, and the environmental problem of acid rain, including how engineers address this type of pollution. Using simple models, they study the greenhouse effect, the impact of increased greenhouse gases on the planet's protective ozone layer and the global warming theory. Students explore the causes and effects of the Earth's ozone holes through an interactive simulation. Students identify the types and sources of indoor air pollutants in their school and home, evaluating actions that can be taken to reduce and prevent poor indoor air quality. By building and observing a few simple models of pollutant recovery methods, students explore the modern industrial technologies designed by engineers to clean up and prevent air pollution.
The Phoenix metropolitan area, like many large cities, has problems with air pollution at certain times of the year. You can do a simple experiment to determine some of the factors that affect air pollution.
Students are introduced to measuring and identifying sources of air pollution, as well as how environmental engineers try to control and limit the amount of air pollution. In Part 1, students are introduced to nitrogen dioxide as an air pollutant and how it is quantified. Major sources are identified, using EPA bar graphs. Students identify major cities and determine their latitudes and longitudes. They estimate NO2 values from color maps showing monthly NO2 averages from two sources: a NASA satellite and the WSU forecast model AIRPACT. In Part 2, students continue to estimate NO2 values from color maps and use Excel to calculate differences and ratios to determine the model's performance. They gain experience working with very large numbers written in scientific notation, as well as spreadsheet application capabilities.
Students learn what causes air pollution and how to investigate the different pollutants that exist, such as toxic gases and particulate matter. They investigate the technologies developed by engineers to reduce air pollution.
Today, it's hard to find dishwashing liquids or hand soaps that don't advertise their "antibacterial" chemicals. But while it's unclear whether these chemicals actually help us, there's new reason to believe they might do more harm than good. This Science Update examines the common antibacterial agent, Triclocarban or TCC, which is found in hand soaps and other household products.
About 70% of our planet is covered by oceans and seas: large, full of life and mysterious.
They are a source of food, way of transportation, oxygen producer, and more.
But the sea is in danger: overfishing, plastic waste, acidification, species extinction.
We need to better understand the marine life and deal with it in a sustainable way, because our life is closely linked to the sea. If it is sick, we cannot stay healthy.
edeos - digital education
Using gumdrops and toothpicks, students conduct a large-group, interactive ozone depletion model. Students explore the dynamic and competing upper atmospheric roles of the protective ozone layer, the sun's UV radiation and harmful human-made CFCs (chlorofluorocarbons).
Climate change is an urgent problem. Because it is causing new weather extremes and fatal catastrophes, climate change is better termed climate disruption. Bending the curve to flatten the upward trajectory of pollution emissions responsible for climate disruption is essential in order to protect billions of people from this global threat. Education is a key part of the solution.
In this lesson, the music and visuals of the Gorillaz album Plastic Beach is used to introduce students to the issue of plastic waste. Students are asked to calculate the percentage of plastic that goes unrecycled internationally, and illustrate a model of polyethylene to better understand why the molecular makeup of plastic creates both benefits and drawbacks. Finally, they evaluate various projects that are currently being undertaken to curb plastic waste, and develop their own similar program or project that they could employ on a local level.
Students are introduced to the respiratory system, the lungs and air. They learn about how the lungs and diaphragm work, how air pollution affects lungs and respiratory functions, some widespread respiratory problems, and how engineers help us stay healthy by designing machines and medicines that support respiratory health and function.
A town meeting is the backdrop for a role-playing case about ground-level ozone air pollution. The case consists of a flier and scripts drawn from public comment records on the government mandate to reduce ground-level ozone by limiting nitrogen oxide emissions. Students play the parts of stakeholders and develop recommendations for reducing emissions.
In some cities, especially large cities such as Los Angeles or Mexico City, visible air pollution is a major problem, both for human health and the environment. A variety of sources contribute to air pollution, but personal vehicles account for one of the main sources. Though each car has relatively low emissions when compared to vehicles of the 1970s, there are so many more cars on the road now that their emissions play a large role in overall pollution. In this activity, students think about alternate ways to power a vehicle to reduce emissions. Student teams design an eco-friendly car using the engineering design process, and make a presentation to showcase their product.