Ian Engelbrecht discusses scorpions in Southern Africa.
Today we know volcanoes are openings or vents to the interior of the planet. About 1,500 volcanoes around the world are considered active, about 90% rest in the Ring of Fire, a band circling the Pacific Ocean. While the Earth’s surface looks peaceful the crust is made up of slabs of rock that constantly shift, where the plates interact, volcanoes often form. Friction from shifting plates melts the Earth’s crust, causing ro
Dressed for Success
At the age of 91, most people will already have been taking things easy for a number of years. Not so for the man responsible for robing graduates at the University of Nottingham – at 91 he’s just beginning his retirement!
In his 27 years service to the University, Arthur Roland Benson (known to all as Ron) has robed such distinguished honorary graduates as Sir David Attenborough,
Helen Keller, Part V
This is from the Discovery Channel/Education series and this video is an animated biography of Helen Keller aimed at elementary school children.
What does Influence Mean? Who has Influenced you?
This lesson deals with the meaning and the power of influence. How does it affect us? There is a clear definition of the word "Influence" and there are many words listed. The new vocabulary is presented in context and you can read the examples on the screen.
Vertebral Column Tutorial
Video uses hand drawn diagrams to identify and discuss the structure and physiology of the vertebral column. Each type of vertebrae is examined. Good review for a test. Music in background is a little distracting, and video is a little pixelated. Grades 9-12. 8:12 min.
How to Use Adjective Phrases
This is an interesting video that describes what an adjective phrase is and how to use it. The teacher demonstrates with sentences on her computer screen. It can help students understand the usage and importance of these phrases. (1:21)
Convection Causes Wind: Part 1
Convection is very difficult to see. The video is a narrative, step-by-step demonstration that includes good explanations. This activity provides a way for students to actually see convection and helps them understand what causes wind. (2:48)
On the Surface
Surface science examines how surfaces react with each other at the molecular level. The atoms at the surface are different than those atoms in the center of an object, making the atoms much more reactive than those inside. This program explores a variety of real world applications of this particular property.
21eTeacher: Explore video
A video about the second E in Nortel LearniT's lesson plan model. This is the section where the student investigates the topic more thoroughly. In these lessons the investigation takes the form of Internet research but it could equally include original research and the use of a variety of problem solving techniques. What is important is that the students are given the opportunity to "free wheel" their way through the materials and not be over directed. We all know however, that they will need so
Weather : What Causes Wind-Driven Currents?
Wind-driven currents are caused by the return of large circulation cells, of which there are three between the equator and the poles. Find out how circulation cells also move heat over the planet with help from the chair of a department of environmental studies in this video (02:29) on wind-driven currents.
Expert: Jack Hall
Bio: Dr. Jack Hall is the department chair in the department of environmental studies at the University of North Carolina at Wilmington.
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