Open Wide and Trek Inside
This site examines the mouth and its various purposes, different types of teeth and their functions, bacteria that live in the mouth, and the processes of tooth decay and oral disease. The site includes activities and a teachers guide, which are designed for use by elementary school teachers.
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Polar: Sounds of the Magnetosphere
This collection of sounds contains recordings of five types of electromagnetic or radio emissions produced by the magnetosphere. The sounds are accompanied by written descriptions of how they are propagated and by spectrograms which provide a graphic display of their frequency distributions.
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Igneous Rocks of the Ocean Basins
These lecture notes introduce magmatism and petrology as they relate to the oceanic lithosphere. The notes cover ophiolite sequences and types of volcanic settings found in ocean basins. A section about basalt includes discussion of location, composition and origin of mid-ocean ridge basalts. Ocean ...
Author(s): Stephen Nelson

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Metamorphic Rock Textures
These lecture notes discuss metamorphic textures and the mechanisms that create them. A discussion of foliation covers types of stress and the development of foliated rocks from slate to gneiss. Five modes of metamorphic differentiation are introduced including preservation of original compositional ...
Author(s): Stephen Nelson

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1002 DE BELLO GALLICO - ANGLICE ET LATINE
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1003 DE BELLO GALLICO - ANGLICE ET LATINE
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1004 DE BELLO GALLICO - ANGLICE ET LATINE
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Catullus VIII (v.n.)
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Special report: Startups 2.0


Author(s): The Economist

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008 - Bellum Helveticum - Lowe Butler Walker
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054 - BELLUM HELVETICUM - LOWE BUTLER WALKER
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Magic School Bus "Goes Cellular"
Learn about the cells that make up our body with this Magic School Bus video. It's the night of the rock lover's annual GRANITE awards, and Arnold is about to become the first kid ever to win the coveted Rocky Award. He's so excited that all he's been able to eat for weeks are Seaweedies - and lots of them! When he arrives for the big event, he's totally nervous. He's also totally orange! After Arnold's friends determine that the orange isn't on his skin, they shrink down to find out what's unde
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Classifying Triangles
This lesson defines and shows examples of various types of triangles: scalene, isosceles, equilateral, acute, obtuse, right, and equiangular. 

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From the Heart
This video segment describes how the chambers of the heart contract and relax in synchrony to push blood through the pulmonary and systemic loops of the circulatory system. You'll see how the heart pumps oxygen-depleted blood to the lungs, where red blood cells acquire oxygen before travelling back to the heart and then on to the rest of the body. The video is nice illustration of how the circulatory and respiratory systems work together to carry in oxygen and remove waste.  Closed captioning i
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The Eatwell Plate
This is a British update of the classic "Food Groups." In it, Charlie describes how to plan our nutrition by using a plate with different types of foods on it as a pie-chart, telling us what we should eat and in what proportions (9:54)
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Learn about Fuel Cell Technology
Many researches have been working on renewable, clean energy sources. This particular study shows how hydrogen may some day replace gasoline to fuel our vehicles with zero emission of fuel cells.  Learn about real world testing of this fuel cell technology. Run time 01:50.

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Solar Flares
This video starts with questions for students to look for the answers for in the video. It explains the different types of solar flares and how solar activity affects the Earth. Produced specifically for students and is suitable for elementary and older students. 
(This is an Emmy award-winning series of instructional programs that introduces students in grades 3-5 to NASA and integrates mathematics, science, and technology through the use of Problem-Based Learning (PBL), scientific i

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Classifying Living Things

Our Earth hos
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What Is a Dual Processor?
A dual processor refers to a computer system that has two processors, which allows the computer to run more programs at the same time. Get a computer with a dual processor so that the computer will run faster and more efficiently using information from a certified computer technician in this video on computer processors.

Expert: Jonathan Ayres
Bio: Jonathan Ayres has more than 25 years of computer industry experience with all types of computer hardware and operating systems.
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Computer Basics : What Does CPU Stand for?
 CPU stands for central processing unit and is the main core of a computer where every command runs through and is routed to its appropriate location. Discover the different types of CPU's, or processors, available in different computers with information from a certified computer technician in this video on computers.

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