Once released, air pollutants react chemically with each other under solar radiation to become even more dangerous secondary pollutants. A company in the Northeast U.S. tracks the emission of pollutants at street level, while an international long-term study follows plumes of pollution from Mexico City across the continent and beyond.
Arts teachers use formal and informal strategies to assess their students
In this 12th-grade law class at Champlin Park High School in Minnesota, JoEllen Ambrose engages students in a structured discussion of a highly controversial issue
In Part I, Alfredo Lujan
How can we use rocks to understand events in the Earth
Learner Team members and students compare two multi-arts performance pieces from different eras, Quidam (1996) and Parade (1917). They discover how our perception of a work of art is influenced by what we know about the time and place it was created. They also explore how music can establish a mood, create their own vaudeville acts, and learn a process of critical evaluation.
Weston Woods Animated Children's Books
Strasbourg: Symbol of a United Europe
From Kepler's laws and the theory of tides, to Einstein's general theory of relativity, into blacknholes, and beyond.n
A last lingering look back at mechanics to see new connections between old discoveries. n
A Journey into Wonder with Students and Seasoned Poets: Jack Webb & Luke Anderson host with special guest Mary Harker and student guests Avery Kats and Lauren Lehman
Cancers result when genes required for normal cell function are mutated and the resulting cells undergo other changes ultimately leading to uncontrolled division. This session reveals new information on normal cell function, proto-oncogenes and tumor suppressor genes and their role in the cell cycle, and current research in drug design for specific cancers.
What's in a Tail? - Everybody seems enamored with their tails today, except for Max, who doesn't think his tail is so special. Mama shows the kids (through her movies) that there are a lot of different "tails to tell" in the animal kingdom. Every tail, however, is unique and special - just like the animal it's attached to. Footprints in the Sand - Playing in the bush, Max, Bo and Karla stumble upon a giant footprint, and go running back to Mama. Mama is curious, and together they discover (by looking at movies of various animals and their "tracks") that the print they saw wasn't left by any animal walking in the savanna today but, instead, was left by an impressive remnant of the distant past.
Matter is examined in its three principal states
Using Avogadro's law, the mass of a substance can be related to the number of particlesncontained in that mass.n
All sound is the product of airwaves crashing against our eardrums. The mathematical technique for understanding this and other wave phenomena is called the Fourier analysis, which allows the disentangling of a complex wave into basic waves called sinusoids, or sine waves. In this unit we discover how the Fourier analysis is used in creating electronic music and underpins all digital technology.
A pre-teen blogger discusses their feelings, relationships and concerns about school friends, family and more.
California's looming teacher shortage and what it means for cities with a high cost of living like San Francisco. How the Chula Vista school district revived its arts program. Meet the head custodian at a school in Yuba City. Plus, go inside one of the state's last remaining one-room schoolhouses in Kyburz, just outside of Lake Tahoe.
In Good Shape is the weekly health show on DW, covering all aspects of health care: what's new in medical treatment, alternative medicine, wellness and fitness - as well as nutrition and beauty. In our studio interview we discuss topics in-depth with specialists, and offer you opportunities to pose your own questions. Dr. Carsten Lekutat and Stefanie Suren are alternate hosts of the program and will provide a combination of video-rich features and insightful interviews that grapple with some of the larger issues in medical treatment and healthcare. As an interactive feature of the program we also ask viewers to request a program topic Dr. Carsten Lekutat is a qualified General Practitioner and works as a doctor in Berlin. He is also responsible for training medical students at the Berlin Charite hospital. Stefanie Suren is executive producer and presenter of In Good Shape. 'Keep it simple and straightforward' - that is her goal as a reporter, producer and presenter.
Professor Maier tells the story of how the English-loving colonist transforms into the freedom-loving American rebel. The luminaries of the early days of the Republic -- Washington, Jefferson, Adams -- are featured in this program as they craft the Declaration of -- and wage the War for -- Independence.
Amid religious wars, a few cities learned that tolerance increased their prosperity.n
Earth and space science is covered. Guests explain concepts of geology, meteorology, astronomy, biology, and earth science. Among the topics are: the formation of life on earth, earthquakes and plate tectonics, the rock cycle, the water cycle, pollution, weather patterns and climate, and renewable and non-renewable energy sources. The Rock Cycle looks at what has happened on earth and what likely will happen. The form that rocks take reflects a point in time and can be transformed from earth's interior to mantle to magma to igneous rock to sediment to sedimentary rock to metamorphic rock. Also: seismologists' ability to predict where, but not when, earthquakes will occur; and a diagram of the water cycle to demonstrate the importance of knowing how to read graphics on the GED exam.