Black holes are formed when extremely large star dies. When a star dies, it first expands, then contracts. Large stars contract until their atoms collapse, pulling the electrons into the nucleus. The immense strength of the gravitational force of a black hole pulls all nearby matter in, even light (which has mass). (02:28)
The Biggest Stars in Space
Stars range in size from neutron stars, which vary anywhere from 20 to 40 km in diameter, to supergiants like for example - Betelgeuse in the Orion constellation, which has a diameter approximately 650 times larger than the Sun—about 0.9 billion kilometres. However, Betelgeuse has a much lower density than the Sun.
VY Canis Majoris (VY CMa) is a red hypergiant star located in the constellation Canis Major. With a size of up to about 2,100 solar radii, it is the largest known star and als
Backyard Astronomers (Part 5 of 6)- The July Night Sky
This is a ten-minute History Channel documentary concerning objects that can be seen in the July night sky.
Using the Distributive Property
The distributive property is one of the most important and fundamental parts of algebra. In this video the math teacher shows how to break down the equation in to the simplier components. Shows negative numbers also. This is a great beginning video. Video is good quality and good for all students as review or initial learning of concept.
Song: He knows my name
A religious song about "our maker". There are religious images and landscapes shown in a video and the lyrics are shown as the song goes.
Song: Every Move I Make (for you Jesus)
A video with people dancing and animation. The lyrics are given and the rhythm is modern pop.
Song: Jesus My Saviour
A video showing images of plants, flowers, mountains and many other creations. No lyrics given. Piano music.
The Mom Song
This song is dedicated to the hardest working people on the planet - moms!
Growth of a Nation
This ten minute video illustrates the growth of America from the original 13 Colonies in 1789 to the year 2000. Gives information to purchase the full length video.
Crater Lake, North America
Crater lake, part of North America's cascade range, is a product of volcanism and this one minute video It shows how a volcano created the crater. Excellent graphics, but not much about the lake itself.
The Eruption of Mount St. Helens
In this 1:45 video the 1980 eruption of Mount St. Helens, in Washington state is explained and shown. It is an overview without information on the science involved.
This video contains 50 facts about the state of Alabama. This was a project done by students. It has the words on a screen and music in the background. It contains such facts as the state song, firsts the state did, when it became a state, famous people who were born there, highest point in the state, and many, many more. Video is good quality and has information for student studying this area of the United States. Very difficult to read the words at times and the music does not add to the
Interesting Facts About Alabama
This video is simply a collection of photos of Alabama and does not offer any other data. The video ends abruptly.Video is good quality and has information for students studying this area of the United States.Video has slides but no narration. It references a website that rents cars!
Alaska Brown Bear Trapped National Geographic Video. National Geographic researchers trap an Alaskan brown bear for research. Video is used for research on the life of the brown bear. Researchers are trying to discover more about the bears movement. How is their movement affected by clear cut forests and roads? They use GPS systems to do this, in order to get the GPS on the bear they need to capture the bear the bear does not like this.
National Geographic Video. National Geographic researchers trap an Alaskan brown bear for research. Video is used for research on the life of the brown bear. Researchers are trying to discover more about the bears movement. How is their movement affected by clear cut forests and roads? They use GPS systems to do this, in order to get the GPS on the bear they need to capture the bear the bear does not like this.
Performing "The Walrus Hunt"
This video, adapted from material provided by the ECHO partners, shows how students in Anchorage, Alaska, develop a song and dance to tell about a walrus hunt. Their goal in creating this dance is to connect with their Yup'ik and Iñupiaq cultures, help preserve the cultures for future generations, and express their joy in being part of those cultures. To share their dance with others, the students produce a music video of their work, excerpts of which appear in this video. Closed captioni
The Grand Canyon
Data about the Canyon and how it came to be. Great visuals. A map of the canyon or a Google Earth image would be a benefit. The time it took to be created is also debated (Running Time 2:48).
Black Swamp - Exploring Arkansas (AETN)
Arkansas Educational TV publication. In this video the narrator goes to the Rex Hancock/Black Swamp Wildlie Managment Area south of Augusta. Rex Hancock helped to preseve these wetlands and that is why it is named after him. This is a very unusal and unique trip down the swamp. Video is good quality and has information for students studying this area of the United States.
Facts about Florida
This video is about the state of Florida. Students in the video present many facts about the Florida with pictures of Florida. (Amateur video)
Georgia Land Forms
Student reviews (5) Georgia land forms for a 5th grade project and gets help from a special guest, the Governor of Georgia!(Amateur video)
Beautiful beaches, active volcanoes, and a rich, diverse culture make Hawaii a visitors' paradise. This video discusses how 1.2 million people call Hawaii home and many more visit the islands, surfboarding was invented here, Pearl Harbor, volcanoes, wildlife, and traditions. Video is good quality and appropriate for all students.