Instructor talks briefly about the theories of Bohr and introduces orbitals. Instructor uses his computer screen and different colors to educate students. Instructor says this video series introduces information covered in a first-year high school course in chemistry.
Electron Configurations, Part I
This is an introduction to using the periodic table to determine electron configurations. Instructor uses his computer screen and different colors to educate students. Instructor says this video series introduces information covered in a first-year high school course in chemistry.
Electron Configurations 2
Shows how to figure out the configurations for the d-block elements. Instructor uses his computer screen and different colors to educate students. Instructor says this video series introduces information covered in a first-year high school course in chemistry.
Orbitals and Electron Configuration
Instructor offers more intuition on orbitals and touches on electron configuration. Instructor uses his computer screen and different colors to educate students. Instructor says this video series introduces information covered in a first-year high school course in chemistry.
Beneath the Waters of Cocos Island
Cocos Island, a remote volcanic summit in the middle of the Pacific Ocean, serves as a beacon for hungry predators, including thousands of hammerhead sharks that travel here each year in search of prey. This video segment from NOVA: "Island of Sharks" depicts some of the common predator-prey interactions that take place in the nutrient-rich waters surrounding the island. Closed captioning included. Run time 03:06.
This short video regarding the ecosystem of the rain forest describes the three layers of the rainforest and ends with the startling conclusion that man's deforestation activities may actually cause the demise of rain forests by the year 2050. For third-graders and older.
This video segment adapted from FRONTLINE: "Heat" examines clean coal technology. It provides statistics for overall annual U.S. consumption as well as average household usage, and then explains the need for developing a cleaner way to convert coal into energy. Visit a Florida energy plant that turns solid coal into a clean-burning fuel gas (syngas), and learn about a new approach to capture and store carbon dioxide gas, a by-product of coal burning. Carbon dioxide is an important greenhouse gas
Amphibians May Give Us Clues to Our Changing Climate
Changes in amphibian populations may offer clues to changes in our climate. In the Rock Mountains scientists spend their summers studying wind, weather, plant life and amphibians. The salamander population in this area fluctuates year to year and they are trying to determine if this decline is caused by global warming or humans. Run time 03:14.
Long ago, only the rich could afford colorful textiles. The search for new colors in the mid 1800s boosted the development of modern chemistry. Color is explained in terms of light and pigment. Join with experts to observe chemistry in action. Synthetic dyes were first discovered by an 18 year old chemist, and the video demonstrates how the first one was accidentally discovered.
Inside the National Weather Service
Every day of the year, the National Weather Service is on the front line, providing accurate forecasts and early storm warnings. Take a look inside to see how a forecast comes together.
Basics of Geography: Climate
Discusses what makes up geography; land, water, people and their lives and how land and water affect them. Geography also includes climate. Climate is the weather pattern in a region of the world over a long period of time. One of the major factors affecting our climate is the Sun. The way the Earth moves around the Sun affects the climate. This video discusses rotation, revolution, year, axis, hemisphere, latitude, lines of latitude, and equator. This video discusses what causes the different c
Are the magentic poles reversing?
Study of the question Are the magnetic poles reversing?" Ian McCrea, Rutherford Appleton Laboratory. Using magnetic models, scientist study the million plus year cycle of the pole reversal. RUn time 03:31.
Every now and then, the Sun, Earth, and Moon align so that, when viewed from the Earth, the Moon eclipses the Sun's light. Solar eclipses are fairly common -- the Moon will block out some portion of the Sun at least twice a year. However, it is still a special event to be able to witness a total solar eclipse. In this video segment adapted from NASA, learn how solar eclipses happen and why they are so difficult to witness. Closed captioning included. Run time 01:53.
In this video adapted from NOVA scienceNOW, learn how the common wood frog survives the cold winter. Wood frogs are found in the northern United States and Canada and must endure freezing cold temperatures for parts of the year. In order to survive the cold, they have a special adaptation—they are able to freeze solid without damaging their cells. Sugar acts like a natural antifreeze in their bodies, allowing them to spend the winter frozen and then resume function in the spring. Run time 03:3
Elizabeth I - Documentary Part 10
After the conspiracy and death of her husband, Mary queen of Scots was involved in battle against Elizabeth. She was taken prisoner to England. She abdicated to her one-year-old son, James, who she never saw again. Elizabeth had to face more problems with Catholic groups. Mary escaped from her island prison. There was battle and she is defeated again. Mary was imprisoned again. Catholics in the north rebelled. Mary attempted once again, this time, she plotted with Lord Northfolk against Elizabet
Learn to Speak French : The Months of the Year
This video has the names of the months of the year in English and French and is suitable for all beginning French-language learners.
Common French Phrases for the Months of the Year
Learn common French phrases for the months of the year. Stephanie Hourie Morrow is a native French speaker and has been giving language lessons for 10 years. Each phrase is pronounced in English and French while the French phrase appears on the screen. For beginning to intermediate learners. Good sound quality.
The Power of Acknowledgement - Make a Difference
This video is about a project started by a teacher with her high school students. After telling them why each of them had made a difference that year for her and for the class, she asked them to choose a person in the community who they could acknowledge. They had to go talk to that person saying "Who you are makes a difference". They had to acknowledge their work. The video shows how this project ended up helping a teenager and his father to get closer. It explains the importance of acknowledgi
What are Gamma Rays? Part 2
Somewhere out in the vast depths of space, a giant star explodes with the power of millions of suns. As the star blows up, a black hole forms at its center. The black hole blows two blowtorches in opposite directions, in narrow jets of gamma rays. NASA's Gamma-ray Large Area Space Telescope, or GLAST, will catch about 200 of these explosions, known as gamma-ray bursts, each year. GLAST's detailed observations may give astronomers the clues they need to unravel the mystery of what exactly produce
Documentary on Arctic Sea Ice Shrinking – Global Warming
During the summers of 2007 and 2008, year-round Arctic sea ice shrank to its lowest level since satellite records began 30 years ago. Some scientists now predict an ice-free Arctic summer by 2012. As snow and ice levels decline, sea-levels and weather patterns are affected which in turn impact plant, animal, and human life.