CK-12 Foundation
Ck 12: Physics Simulation: Field Lines
[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]
Khan Academy
Khan Academy: Measure the Earth's Field!
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!
University Corporation for Atmospheric Research
Ucar: The Sun Earth Connection: Exploring the Dynamic Nature of the Sun
The unit contains lessons and a presentation that allow students to explore the Sun through images and investigate how magnetism from the Sun interacts with the Earth's magnetic field during space weather events.
PBS
Pbs: Magnetic Storm
The purpose, life, and hazards of the Earth's magnetic field are discussed as they relate to magnetic storms. This includes their impact on animals, auroras, and even compasses. Interactive features are also included in this...
Nine Planets
The Nine Planets: Earth Facts
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.
CK-12 Foundation
Ck 12: Physical Science: Magnetic Field Reversal
[Free Registration/Login may be required to access all resource tools.] Discusses what a magnetic field reversal is and the evidence that this has happened with the Earth.
CK-12 Foundation
Ck 12: Plix: Compass Poles: Earth's Magnetic Field
[Free Registration/Login Required] A site containing an animation of a compass and a short quiz over the topic.
Other
University of Texas Arlington: Isostasy, Gravity, Magnetism, and Internal Heat
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...
Georgia State University
Georgia State University: Hyper Physics: Magnetic Field of the Earth
This site is a description of the earth's magnetic field, including a section on the "Dynamo effect," a proposed explanation for the origin of the earth's magnetic field.
CK-12 Foundation
Ck 12: Earth Science: Earth's Shape and Magnetic Field Study Guide
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.
University Corporation for Atmospheric Research
Ucar: The Sun Earth Connection: The Magnetic Sun
Students will build a simple version of a magnetometer and use it to discover the types of areas of the Sun that have very strong magnetic fields. Students will then describe what the types of features associated with the Sun's strongest...
University Corporation for Atmospheric Research
Ucar: The Sun Earth Connection: Planet Magnet
Hands-on activities help learners develop an understanding of Earth's magnetic field. Students use iron filings to explore the magnetic field around a magnet, record their observations, then apply their experience with the magnet to...
Other
Impact Tectonics: Earth's Interior, Gravity, and Magnetism [Pdf]
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...
Smithsonian Institution
Smithsonian: This Magnetic Map Shows Earth as You've Never Seen It Before
This article discusses a map generated by the European Space Agency's Swarm mission that depicts Earth's magnetic field using satellites to measure magnetism. The map reveals magnetic stripes and magnetic anomalies. The article includes...
Woods Hole Oceanographic Institution
Woods Hole Oceanography Institute: Hot Topics: Seafloor Magnetics
The earth's magnetic poles have reversed themselves throughout the earth's history. Find out how scientists know that this happened.
NASA
Nasa: Image Science Center: Soda Bottle Magnetometer
Help students explore Earth's magnetic field with this soda bottle magnetometer activity. Follow links to other space projects for the classroom.
National Geographic
National Geographic: Build a Magnetometer
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.
National High Magnetic Field Laboratory
Magnet Academy: Foucault's Disk
Leon Foucault, a French physicist much better known for his pendulum demonstrating the rotation of the Earth, also created in 1855 a device that illustrated how eddy currents work. (Java tutorial)
University Corporation for Atmospheric Research
Ucar: Planet Magnet
Students use iron filings to explore the magnetic field around a magnet and record their observations then apply their experience with the magnet to understand the magnetic field around Earth.
University of Colorado
University of Colorado: Ph Et Interactive Simulations: Magnet and Compass
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.
National Earth Science Teachers Association
Windows to the Universe: Magnetic Field Reversals
Provides a short article, with embedded links, about magnetic reversals and how they might occur.
PBS
Nova: Magnetic Storms: When Compasses Pointed South
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.
National High Magnetic Field Laboratory
Magnet Academy: Anders Celsius
Anders Celsius is most familiar as the inventor of the temperature scale that bears his name. The Swedish astronomer, however, also is notable as the first person to make a connection between the radiant atmospheric phenomenon known as...
Geography 4 kids
Geography4 kids.com: Fields of Magnetic Forces
Find out how the Earth's magnetic field functions.