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.

A unit all about magnets! Explore magnetic forces, types of magnets, and more through these informative activities.

[Free Registration/Login may be required to access all resource tools.] The Earth's magnetic field and how it protects life on Earth, and how it is used for navigation.

[Free Registration/Login may be required to access all resource tools.] Examines Earth's magnetic field.

A module that uses pictures, videos, reading passages, and review question to go over what a magnet and magnetic pole are, and how magnetic force is related to magnetic field. This site may require free registration to access all...

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.

[Free Registration/Login may be required to access all resource tools.] Examines Earth's magnetic field.

Move a bar magnet or an electromagnet around to see how the magnetic fields change. Requires Java.

You can use a bar magnet and a compass to get a rough idea of the strength of Earth's magnetic field. Read this article to find out how!

See drawing from Hans Christian Orsted's lab notebook showing an experiment in which an electric charge passing through a wire seemed to create a magnetic field!

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...

[Free Registration/Login may be required to access all resource tools.] Looks at the properties of magnets and why some materials are magnetic.

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

Help students explore Earth's magnetic field with this soda bottle magnetometer activity. Follow links to other space projects for the classroom.

In this interactive tutorial students will explore how a magnetic field affects a current-carrying wire and also how two current-carrying wires affect each other. They will learn about Biot-Savart, Ampere's Law and the magnetic field...

The human body has an impressive ability to heal itself after injury, but humans have nothing on planaria. Planaria have an amazing ability to regenerate. An entire animal can regenerate from just a fraction of the body. This project...

In this interactive unit students will see how magnets work and how they are used in some of the most useful and common devices today.

In this activity discover the direction of the magnetic field by making patterns of the field visible with iron filings.

[Free Registration/Login may be required to access all resource tools.] Why the Earth is a magnet and how its inner structure relates to its magnetic field.

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

Students are introduced to a unique fluid--ferrofluids--the shape of which can be influenced by magnetic fields. This activity supplements traditional magnetism activities and offers comparisons between large-scale materials and...

Physicists sometimes study matter under extreme conditions. For example, think of the emptiness of interstellar space vs. the unimaginable crush of pressure at the center of a neutron star, or an object dipped in liquid nitrogen vs. the...

Create a magnetic field that is stronger than Earth so a compass needle will orient itself to the new field in this activity.

An activity where students test different materials to see which allow magnetic lines of force to pass through them and which block the magnetic lines of force.