A slideshow and a short multiple-choice quiz on the basic concepts and vocabulary of magnetism.

Topics covered in this slideshow include the Earth's interior, seismic S- and P-waves, the crust and mantle, phase boundaries encountered by seismic waves, the Earth's internal heat, gravity and density, gravitational anomalies, the...

This series of images is a combined collection of over three museums' collections of physics electricity and magnetism images. The images are sorted by pages with about nine images per page and five pages.

An in-depth look at how isostasy works and the processes taking place during glaciation and the melting of glaciers. Looks at gravity and the effects of density differences within the crust and mantle, and at Earth's magnetic field and...

A bell jar, Peeps and balloons demonstrate how changing the atmospheric pressure around objects can change their size. [3:18]

Compasses and special metal filings help you "see" the invisible force of magnetic fields. [2:25]

This lesson will introduce what a magnet is and how magnets work.

Discusses the history of electronic banking, banking problems, vacuum tubes vs. transistors, magnetic ink character reading, handling paper at high speed, and the ERMA.

This slideshow gives an advanced-level explanation of how to calculate the distance that tectonic plates move by using Physics formulas and concepts. Includes a discussion of marine magnetic anomalies and how these impact plate movement....

An excellent resource on nuclear fusion! Using incredible graphics and excellent discussion, this site (with its several pages) provides an exhaustive online course on the topic. Click on the link for "a Guided Tour" and begin.

A good visual introduction to permeability, comparing the magnetic permeabilities of air and iron. This site provides a good conceptual introduction to this topic.

This lesson will show how a particle can travel in a wave form, by following perpendicular electric and magnetic fields. It is 1 of 4 in the series titled "Electromagnetic Waves."

In this full-color image, a neuron is expressing the light-gated cation channel channelrhodopsin-2 (small green shapes), and is being illuminated by a focused beam of blue light (coming from the top).

This lesson will explain how to calculate voltage, current, and resistance in simple electric circuits. It is 3 of 4 in the series titled "Electric Circuits."

If you want to understand electricity, you first need to know a little about matter, atoms and electrons.

This site from the Georgia State University provides a good overview of ferromagnetic materials, introducing concepts such as magnetic domains, hysteresis, the curie temperature, and magnetostriction.

This site from the Georgia State University provides a good overview of ferromagnetic materials, introducing concepts such as magnetic domains, hysteresis, the curie temperature, and magnetostriction.

This lesson will show how a particle can travel in a wave form, by following perpendicular electric and magnetic fields. It is 3 of 4 in the series titled "Electromagnetic Waves."

This lesson will explain the relationship between electricity and magnetism.

This lesson will explain how to calculate voltage, current, and resistance in simple electric circuits. It is 4 of 4 in the series titled "Electric Circuits."

From an online teacher demonstration book. Includes a description and explanation of five demonstrations on a variety of magnetism topics. Interesting and captivating demos.

Simple line graph showing the inverse relationship between the amount of electrical resistance and the amount of work possible.

We rely on the sun to sustain life, but there are many things about the sun that the human eye is unable to detect. This media rich site offers a spectacular look at coronal mass ejections, magnetic loops, and solar flares. Interactive...

All the components are here for you to build an electric generator. Parts list, construction, testing, how it works, feel the electrons, and more.