So you built a magnetometer, now what? High school scientists use their magnetometer made in a previous lesson to map the union of magnetic fields of dipole magnets. They experiment with different alignments and draw conclusions about...

A formative assessment is a great tool for planning further instruction. The fifth lesson of a 14-part series exploring magnetism and electricity provides questions to gauge current understanding of magnetic fields, compasses, and...

The biggest magnet in the world is at the Los Alamos National Laboratory in New Mexico and can reach 100 tesla. By comparison, magnets that lift cars are about two tesla. The 11th presentation in this series covers magnetism,...

[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.

Young scholars visualize the magnetic field of a strong permanent magnet using a compass. The lesson begins with an analogy to the effect of the Earth's magnetic field on a compass. Students see the connection that the compass simply...

[Free Registration/Login Required] Understand the size and shape of the Earth's magnetic fields, explore the magnetic fields of other planets using this interactive simulation. A PDF worksheet and a video tutorial are also available. [2:35]

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!

[Free Registration/Login Required] A site containing an animation of a compass and a short quiz over the topic.

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

Hands-on project where the learner constructs a magnetometer to monitor and measure changes in earth's magnetic field. These changes can then be used to track solar storms.

Try this quiz about Earth's magnetic shield.

[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.

[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.

Ever wonder how a compass worked to point you to the Arctic? Explore the interactions between a compass and bar magnet, and then add the earth and find the surprising answer.

[Free Registration/Login may be required to access all resource tools.] Discover how scientists learn about Earth's interior using seismic waves, meteorites, density, and the magnetic field. Additional resources are available for download.