An interactive simulation that teaches about force and potential energy by changing variables to stretch and compress springs. This simulation can either be downloaded or played online and includes handouts, lesson plans, and additional...

In the following interactive students will define conservative force, potential energy, and mechanical energy. They will explain the potential energy of a spring in terms of its compression when Hooke's Law applies. Students will also...

Stretch and compress springs to explore the relationships between force, spring constant, displacement, and potential energy. Investigate what happens when two springs are connected in series and parallel.

Learn about the full sweep of U.S. history at this comprehensive site based on a PBS series and telecourse. The series compresses several centuries of events, issues, and people in U.S. history into twenty-six half-hour programs. A team...

Given descriptions, scenarios, or illustrations, students will distinguish between the compressibility, structure, shape, and volume of solids, liquids, and gases.

This simulation allows students to interact with different components of a complex real world phenomenon. The simulation shown is of a 4-stroke internal combustion engine. The thermodynamic cycle being simulated is the Otto cycle, which...

Through a five-lesson series that includes numerous hands-on activities, students are introduced to the importance and pervasiveness of bridges for connecting people to resources, places and other people, with references to many...

By the end of this section, you will be able to define conservative force, potential energy, and mechanical energy; explain the potential energy of a spring in terms of its compression when Hooke's law applies; and use the work-energy...

An activity where learners create a timeline of the history of the Universe, beginning with the Big Bang almost 14 billion years ago, but compress it into one year. Younger students must be able to order events, while older learners need...

[Free Registration/Login may be required to access all resource tools.] The following online tutorial describes how a gas can be compressed and identifies three factors that affect gas pressure. Students will describe the effects...

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

This lesson plan encourages students to look at alternative methods of fuel and explore the various impacts each has on the environment.

Sound! How does it work? All you need to know about it is found here through a series of Q&As. Educators will find useful lesson plans.

This is a detailed biography about George Westinghouse with a link to an article about Westinghouse from the Wilmerding News, 1904. Read about his many inventions that improved railroad safety.

Students learn how forces affect the human skeletal system through fractures, and why certain bones are more likely to break than others depending on their design and use in the body. They learn how engineers and doctors collaborate to...

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

The different types of earthquake waves are discussed and illustrated. Features geologist video clip.

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.

Learn CPR statistics, why CPR is important and who it can help with the fact sheet. A link to a how-to video is included in the article.

Learners build rocket models designed for gaining the maximum height. They use a compressed air rocket launcher and 2-liter plastic bottles. They will also use an online simulator to help them make predictions and adjustments to their...

[Free Registration/Login may be required to access all resource tools.] What a longitudinal wave is, its compressions and rarefactions and what a P wave is.

An analysis of the characters and themes in The Tragedy of Julius Caesar. The author discusses the changes that Shakespeare made to historical events in order to compress them into the play and the literary devices he used to heighten...

Students must predict the distance traveled by a box that has been projected horizontally by a compressed spring. The box will start with potential energy due to elasticity and it will turn into KE without loss. It will then lose its...

This lab is designed to have students investigate the transformations that occur when elastic potential energy is converted to kinetic energy. Students will be able to modify the mass of the object, the spring constant of the spring and...