View a computer model simulation from NOVA Online that illustrates what happens during a magnetic field reversal, an infrequent occurrence that may be currently underway.

Students can use these simulations to understand concepts in electromagnetism. Simulations are available on the following concepts: Lorentz Force, The Hall Effect, capacitor, conductor, transistor, cyclotron, static electricity....

Find lots of information about our planet Earth here. Covers basic facts, Earth's history, layers of the Earth, plate tectonics, composition of the atmosphere, Earth's magnetic field, and some facts about our moon.

Provides a short article, with embedded links, about magnetic reversals and how they might occur.

Investigate a the forces exerted on a charged particle by electric and magnetic fields. Initially, find out how the charge behaves in an electric field. Then, see how the charge behaves in a magnetic field. Finally, initiate both fields...

Easy-to-read information and an illustration of an "electromagnet," a type of magnet in which the magnetic field is induced by the flow of an electric current.

A collection of interactive activities and games to explore how electric fields and magnetic fields move electrons and charged particles in directions that can be planned. Understand that knowing how to control the movement of electrons...

Wikipedia.com provides an excellent introductory site on magnets. Including basic information describing different types of magnets and their characteristics.

Simulate the motion of a charged particle in electric and magnetic fields, and then complete the equations of motion using the Lorentz force law.

[Free Registration/Login may be required to access all resource tools.] What a solenoid is and how to change the strength of its magnetic field, and some uses of solenoids.

Earth's magnetic poles have reversed themselves throughout its long history. Find out what scientists know about these reversals. A geologic time line shows when the reversals occurred.

The earth's magnetic poles have reversed themselves throughout the earth's history. Find out how scientists know that this happened.

How magnetic reversals on the seafloor provide evidence for seafloor spreading. [Free Registration/Login may be required to access all resource tools.]

[Free Registration/Login may be required to access all resource tools.] How magnetic polarity provided more evidence for moving continents.

[Free Registration/Login Required] Understand how magnetic fields generated by solenoid coils can be used to create an operating doorbell using this interactive simulation. A PDF worksheet and a video tutorial are also available. [1:51]

Try this quiz about Earth's magnetic shield.

The Earth, the moon, the stars and just about everything in between has a magnetic field, and scientists use magnetometers when they need to know the strength of those fields.

William Gilbert was an English physician and natural philosopher who wrote a six-volume treatise that compiled all of the information regarding magnetism and electricity known at the time. The work included descriptions of many of...

Learn about how a single phase motor produces a rotating magnetic field in this video. The accompanying article discusses topics found in the video. [2:00]

William Thomson, known as Lord Kelvin, was one of the most eminent scientists of the nineteenth century and is best known today for inventing the international system of absolute temperature that bears his name. He made contributions to...

A great introduction to magnetic domains, including pictures which illustrate the effect on domains caused by external applied magnetic fields.

Explore what an electric field is and how electric fields interact with this module. Module includes a video, interactive activity, and review questions.

Explore quantum motion in a static magnetic field in this animation.

[Free Registration/Login may be required to access all resource tools.] Looks at the Earth as a magnet and how Earth's magnetism benefits living things.