It is just magnetic. This resource presents the concept of Earth's and another planet's magnetic field and how spacecrafts detect them. Learners study a problem using magnetometers and participate in three experiments to come up with a...

Magnets don't grow in fields, but magnetic fields are important to understand. The lesson covers the effect electricity has on magnetic fields. Scholars use a compass, magnets, and electrical wire to test magnetic fields and energy...

An informative physics lesson includes two teacher demonstrations, one on AC currents and the other on DC currents, allowing pupils to take notes while watching. The resource includes questions to assign as homework or...

Young scientists build their own electromagnet and test it by picking up paperclips. Analysis questions evaluate knowledge at the end of the activity. 

Learn what magnetic fields are and how to calculate them with this reference page.

Simulate the creation of an induced magnetic field through the use of a simple electric circuit. An interactive demonstration is included.

This site from NASA provides a short, illustrated description of the basics of magnetic fields and magnetic poles.

A bar magnet model built by placing a group of magnetic dipoles along the magnet. This simulation shows the magnetic field of a bar magnet, and has a movable compass which shows the magnetic field values.

This comprehensive study guide covers the main terms and concepts needed for an earth science unit on the earth's shape and magnetic field. Review questions are included at the bottom of the study guide.

Get information about rotating magnetic fields and how electric machines use them for their operation. Discusses synchronous speed and number of poles on an electrical machine. The accompanying article discusses the topics found in the...

Here is the site to help you learn all about magnetism and magnets! Find out what a magnet is and how it works. Click for additional details on charges, conductors, magnetic fields, currents, resistance as well as the Laws of Faraday and...

Find out more about German physicist Wilhelm Weber, who developed and enhanced a variety of devices for sensitively detecting and measuring magnetic fields and electrical currents.

A simulation which shows the field of a magnetic dipole or quadrupole using compass needles indicating direction and relative field strength. Change the angular orientation of the dipole, and a movable compass shows the magnetic field...

Explains magnetic fields, how they differ from electric fields, and attraction and repulsion.

Informational fact sheet on electricity with emphasis on electric and magnetic fields.

This article surveys inductance and its different forms. It discusses numerous topics associated with inductance such as Faraday's Law, self and mutual inductance, inductors, and magnetic field lines.

Named in honor of Danish physicist Hans Christian Oersted, Denmark's first satellite has been observing and mapping the magnetic field of the Earth.

Explore and review magnetism in this review guide.

Chemist Paul Lauterbur pioneered the use of nuclear magnetic resonance (NMR) for medical imaging. He developed a technique, now known as magnetic resonance imaging (MRI), in the early 1970s that involves the introduction of gradients in...

This site provides a detailed overview of the TRACE (Transition Region and Coronal Explorer) satellite mission, data received, details about the instrumentation, and how to interpret the data.

Georgia State University provides an indexing page for several other pages at the same site which contain information on electricity and magnetism concepts. Pages linked from this page contain many informative graphics, equations,...

This site from the Georgia State University contains a good overview of some of the magnetic properties that are common to all materials, such as susceptibility and permeability, and then specific discussion of both diamagnetic and...

Learn about sunspots and solar flares and the effects of solar activity on Earth.

This fact sheet from Suzy's World and Suzy Cato explores how magnetism works, including "why a compass points north." Content includes fun facts, an experiment, and the ability to make your own compass.