The London Bridge should not have fallen down. And here's why. After a brief history of bridges and the three main types, class members are introduce to the concepts of tension and compression, the two main forces acting upon bridges. 

Poetry is all about sound and rhythm. The sound of the words, the rhythm of the lines, and the emotional atmosphere created by these elements and the literary devices poets use, compress whole stories into a few stanzas. The specialized...

Different colored foods provide various benefits to different parts of the body. For example, purple fruits and vegetables can boost your memory. The worksheet incorporates the concept of healthy eating into drawing,...

Transform your knowledge from average to excellent with this comprehensive guide to function transformations. All of the types of shifts, stretches, and reflections are included with an explanation and coordinating graph to show...

How can you launch an object that isn't propelled by air? The resource provides directions to build a launcher to launch rockets made of two-liter bottles. The launcher, built mainly from materials found at the local hardware...

Invite your learners to take a closer look at the art and mathematical function of dome buildings as designed by the ancient Romans. In the next segment of this attractive activity set, your young historians will then learn about ancient...

A fish's size, fins, and shape can tell us a lot about them! Learners explore fish anatomy to see how species use camouflage, scales, shape, and coloration to survive. The lesson includes advanced vocabulary such as fusiform shape,...

Use this site to learn about basic gas properties including motion, viscosity, and compressibility. Includes links to activities for all ages.

This introductory tutorial teaches students basic musical notation for compressed rests and sharps and flats. Further lessons are linked to this page.

This overview of liquids explores what a liquid is and how matter becomes changes into a liquid.

Extensive information about how waves behave in an elastic medium. Covers different types of waves, their characteristics and behavior, the anatomy of the ear, the speed of sound in different media, the parts of a wave, and wave phenomena.

This website, from the University of Edinburgh, provides a lengthy glossary of computer graphics terms written by Olin Lathrop, author of "The Way Computer Graphics Work". This site provides simple definitions of basic terms; no graphics...

Wikipedia offers information on the Carnot heat engine that uses a particular thermodynamic cycle developed by Nicolas Carnot in 1820.

Dozens of statistical terms are defined and illustrated in this glossary.

This resource contains a lengthy list of definitions of a variety of material properties related to solid strength and elasticity. The definitions are accompanied by equations and metric unit information.

This brief article on the life and contributions of George Westinghouse (1846-1914) includes a picture. Read about his air brake as well as his development of the alternating current system.

Informative site detailing the use of CD-R technologies. Content includes a focus on the basics of CD-Rs, CD recording tips, multiple sessions CD-R, technical support and more.

This resource explores how vibrating objects produce sound waves. The site contains information and an animation.

Understand the basics of geologic stresses in this study guide.

Wikipedia provides an encyclopedia entry about concrete that features pictures, diagrams, history and other information, as well as links to related topics.

Especial Gas Inc. provides a good description of what CFCs are and the dates that countries started to ban them. Explains where the name freon came from.

From the Cambridge Engineering Selector web site. Contains a lengthy list of definitions of a variety of material properties related to solid strength and elasticity (and more). Definitions are accompanied by equations and metric unit...

The expansion-compression-condensation cycle of a refrigerator is discussed and explained. Understandable language but no graphics.

The operation of conventional air conditioners are described. Their parts and the refrigerant/heat exchange cycle is discussed. The use of alternative geothermal systems are explained.