Engineer a Crop: Transgenic Manipulation (Interactive)
The aim is the same as it's been since the dawn of agriculture: to raise the most productive crop you possibly can. But today you are no longer tied to the age-old methods of selective breeding and cross-pollination. With the astounding advancements that have been made recently in genetic technology, it is now possible to out-perform Mother Nature at her own game. In this interactive feature from the NOVA/FRONTLINE "Harvest of Fear" Web site, you're the geneticist, with all of the late
23 Helping Verbs (Song)
This catchy tune helps younger students learn their helping verbs. Each word is printed on the screen as it occurs in the song's lyrics. The song is repeated twice. (01:51)
Deadly Parasites (Interactive)
In this interactive, explore the various steps involved in the cycle of a deadly parasite: Sporozoites invade the victim's liver and become Merozoites; Merozoites burrow into red blood cells then form and divide into thousands; these Merozoites cause disease; the parasites then insure that they will survive and shared with animals and humans during a mosquito's next "blood meal".
Fishing for Safe Food (Interactive)
In this interactive game adapted from the U.S. Environmental Protection Agency, students on a fishing trip try to catch different types of fish. Once a player catches a fish, he or she decides to keep it or throw it back, based on safety information provided by the EPA. The game teaches students which fish have high or low levels of mercury, and how much is safe to eat.
Deep-Sea Bestiary (Interactive)
With names like umbrellamouth gulper, blackdevil anglerfish, ogrefish, football fish, and vampire squid from hell, you might expect to be surprised, even startled, by some of the creatures that inhabit that deepest parts of the ocean. You would be right to expect this. This interactive image gallery from the NOVA: "Into the Abyss" Web site describes the physical and behavioral traits of some of these bizarre and little-known sea creatures.
Explore Alaska's Volcanoes (Interactive)
In this interactive activity adapted from the University of Alaska, learn about four of Alaska's active volcanoes: Augustine, Cleveland, Okmok, and Veniaminof. Explore each volcano through photographs and investigate how different types of satellite images (synthetic aperture radar, thermal infrared, and color composite) are used to study volcanoes. In addition, learn why it is important to be able to predict the movement of volcanic ash, and observe how a computer model called Puff simulates th
Exploring the Arctic Seafloor (Interactive)
Take a virtual expedition deep under the Arctic ice along with a research team from the Woods Hole Oceanographic Institution in this interactive activity adapted fromNOVA scienceNOW. Through two collections of photos and video footage, learn about the obstacles the team faced at the frozen sea surface, as well as the geological and biological discoveries deep down near the Gakkel Ridge, an 1,100-mile-long section of the Mid-Atlantic Ridge. There, volcanic activity generates new ocean crust, and
Amazing Symbiosis: Ant Army Defends Tree
Ants as bodyguards? These ants protect acacia trees with their lives! (02:18)
Future Conditional: The Grasshopper Effect: Toxic Pollution in the Arctic
In the phenomenon scientists call the "Grasshopper Effect," toxic pollutants released thousands of miles to the south evaporate in the warm climate and then 'ride' with the clouds until they reach the Arctic. (02:15)
Talking to Your Kids About the News
This video explains the importance of helping children understand news events and how to help them deal with events such as tragedies. It offers good tips and reminds viewers that younger students don't have the ability to handle such events in proper context. The most important tip is act as a filter for news. (03:23)
Violence in Media Really Matters
This video shows the dangers of violence on television and other media and the link between violence and anti-social behavior. An excellent video for parents and teachers to watch as it explains that there are eight instances of violence per show and some have far more. Teens who watch too much such violence as twice as likely to commit violent acts as adult. Event cartoons are sighted for the tremendous amount of violence that are shown to children. A number of tips are shown. (03:46)
ISS Update: Wearable Technology
NASA Public Affairs Officer Lynnette Madison talks with Human Interface Engineer Cory Simon about wearable technology containing sensors, displays and controls to assist future astronauts and augment their capability to perform more elaborate and complex tasks. Questions? Ask us on Twitter @NASA_Johnson and include the hashtag #askStation. For the latest news about the space station, visit http://www.nasa.gov/station.
Dr. Michael F. Adams Announces Retirement Plans
Dr. Michael F. Adams, University of Georgia president for the past fifteen years, has announced his plans to step down from the office of the president and return to a faculty position at the end of June 2013. Dr. Adams addressed the campus and Athens community in a statement delivered in the university Chapel.
Elbow Room: Westward Expansion in the USA
This three minute musical video highlights some of the land acquisitions of the first Westward Movement. There isn't much depth, but it provides some insights into why the colonists wanted to move westward and manifest destiny.
Uses of the Word Circuit
This video defines the word circuit and explains its uses. Circuit is defined as a complete path that begins and ends in the same place, the complete path that an electrical current travels upon, and a network of organizations that all serve the same purpose. The defintions appear in print as they are explained and accompanied by video examples. ( 1:05)
Elizabeth Mitchell: 2014 National Book Festival
Elizabeth Mitchell appears at the 2014 Library of Congress National Book Festival in Washington, D.C. Speaker Biography: The Statue of Liberty is one of the world's most recognizable symbols of freedom and the American dream. But, according to author Elizabeth Mitchell, the story of the creation of the statue has been obscured by myth. In reality, it was the inspiration of one quixotic French sculptor hungry for fame and adoration. In "Liberty's Torch: The Great Adventure to Build the Statue o
Rivers of the sun, Amazon 1-6
9:41 Amazonia has the greatest rain forest on earth. The world's mightiest river.
In short, the Amazon Basin (Amazonia) is covered by the largest tropical rain forest in the world, and running through its heart is the Amazon River, and its more than 1,000 tributaries, seven of them more than 1,000 miles in length. Measurable rain falls on an average of 200 days a year, and total rainfall often approaches 100 inches per year.
The overall basin drains over 2,70
Jacqueline Kennedy's timeless style and poise made her an icon of American History. Her inaugural ball gown is a highlight of the National Museum of American History's "First Ladies" exhibit. (01:47)