Change at the Top of the World
Marked by towering glaciers and vast expanses of tundra and open sea, the astonishing Arctic landscape exudes a feeling of immense power. But the region's ecosystem is actually one of the most fragile, and it is facing quick deterioration from man-made intrusions such as mining, oil drilling, and pollution - as well as global warming. Journey with explore to meet the region's people and find out how these issues are affect
007 Bilingual Aesop
Description not set
Magic School Bus Gets Planted
Join Ms. Frizzle and the class as they travel inside a plant and learn more about photosynthesis and what helps a plant grow. This Magic School Bus video will teach the following two concepts: (1) Plants need food to live and grow. Instead of finding food to eat, plants use water, sunlight, and air to make their own food. and (2) Plants make surgar, the basic food all living things need to live and grow.
"See" Sound Waves
This is a video showing sound waves in a vibrating glass of blue water that has been placed on subwoofers in a car. Run time 0:41.
Critics and Challenges to the New Deal
During the Great Depression, America was searching for solutions. Because of this, people with radical opinions, who in better times would have been ignored, were able to capture the attention of the nation. Some made valuable contributions by presenting new ideas for debate. Others seemed to be merely obstructionist complainers or even rabble rousers just trying to make trouble. The majority, however, seemed to fall in an intermediate category of outspoken people who had many valid objections,
Make Homemade Gatorade
Learn how to make an economical version of Gatorade in this video clip. A demonstration is shown of how to make homemade Gatorade by starting with 2 quarts of water, adding a package of unsweetened Kool-Aid, 8 tablespoons of sugar and a salt substitute that contains potassium chloride.
Water Cycle Song
This is a video created by science educators teaching the water cycle. Static blue water background with the words of the song flying into the screen. (1:15)
The Water Cycle Song
Short video and song explaining the water cycle. Animated with cute drawings, this video is cut short as it is a prelude (advertisement) to a DVD. The music video is simply drawn and simply sung in order for younger minds to understand. The song is by Peter Weatherall. Run time 01:02
The Wonders of the Hydrological Cycle (and Human Impact)
The Hydrologic Cycle (or the Water Cycle) is a cycle of evaporation, evapotranspiration, precipitation and infiltration. (02:18)
The sun heats bodies of waters such as oceans and lakes, which causes the water to evaporate and form water vapor. Water vapor is also transpired from trees and soil. The collection of water vapor condenses to form clouds, which move around the globe by air currents. With the right conditions, clouds precipitate; some of the water absorbs into the ground t
The Water Cycle Song
This song is sung by elementary school students to help them learn the water cycle.(Clementine's tune). Excellent graphics in this slide show. Lyrics on top.
Water Cycle Song
This 1:19 is a song that teaches about the water cycle. It providing the words so students can follow along with the song . Good for ESL and primary grades. However, graphics don't help and students need to see how the cycle works on paper first. Sing along a good use of music.
Biophysics of Contractile Ring Assembly
BIOS095-10222010 - Fall 2007 Lectures - Biophysics of Contractile Ring Assembly - Lehigh University > Public Courses > Bio Science in the 21st Century > Fall 2007 Lectures > Biophysics of Contractile Ring Assembly
Molecular and Biophysical Mechanisms of Lung Cell Injury
BIOS095-10222010 - Fall 2007 Lectures - Molecular and Biophysical Mechanisms of Lung Cell Injury - Lehigh University > Public Courses > Bio Science in the 21st Century > Fall 2007 Lectures > Molecular and Biophysical Mechanisms of Lung Cell Injury
Stories of the New World intrigued French rulers. Although they wanted a share of the American gold and silver, they were more interested in finding a westward route to Asia. In 1524, the French king commissioned Italian explorer Giovanni da Verrazano to search for a passageway through the New World. Verrazano spotted the coast of South Carolina and sailed north as far as Nova Scotia, but found no such water route or valuable treasure.
A decade later, French navigator Jacque Cartier led t
Modern transportation is a major threat to many of the world's native species — invasive organisms stow away in ballast water on ships, cargo, and airplane wheel wells. This video segment from Evolution: "Extinction!" features Hawaiʻi's efforts to prevent the brown tree snake from emigrating from Guam. Domingo Cravalho and Lester Kaichi of the Department of Agriculture are featured, and scientist David Burney comments. Closed captioning included. Run time 03:22.
Virus Evolution and Pandemics
BIOS095-10222010 - Fall 2007 Lectures - Virus Evolution and Pandemics - Lehigh University > Public Courses > Bio Science in the 21st Century > Fall 2007 Lectures > Virus Evolution and Pandemics
Our future: understanding the big picture
Dr James Martin, founder of the James Martin 21st Century School at the University of Oxford, explain why decision-makers need to look at the global big picture to avoid world catastrophe.
Roman Mass Production
Romans were the first to invent mass production. They figured out how
to use water wheels to create a factory flour mill. Professional video.
Elodea Cytoplasmic Streaming
About 10-15 minutes after preparing a wet mount of an elodea leaf, evaporation of some of the water makes it possible to see chloroplasts in motion inside of the cytoplasm. "Cytoplasmic streaming" is defined as the movement of the fluid substance (cytoplasm) within a plant or animal cell. This is the mechanism for the transport of nutrients. Run time 02:31.
mosses and liverworts
Non-vascular plants have no true roots, leaves, stems, or flowers. They also have no internal circulatory system for bringing water to the various parts of their bodies. Therefore, non-vascular plants are typically found in very wet places. This video gives a brief overview of two non-vascular plants, mosses and liverworts. Run time 0:50.