Third graders solve a cryptogram by decoding a message written with wingdings.  In this decoding instructional activity, 3rd graders solve a message related to magnetism.  Students have notes about magnets once they've finished.

What's the difference between true north and magnetic north? Lesson 9 has your class practicing mapping using a compass and taking the correct declination into account. This lesson is one part of a 10 lesson unit on orienteering....

In MRI, magnetic fields and radio wave pulses combine to get a unique, and medically beneficial, response from your body's hydrogen atoms. Take a peek in this tutorial.

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 Beth Israel Deaconess Medical Center site offers a comprehensive look at MRI exam phases, preparation, technology, equipment, safety, and research. Images and labeled diagrams are also provided on this site.

This site provides links to a variety of government-sponsored overviews and articles on electromagnetic fields and their associated health risks.

This site explores the history of power lines and cancer associations, as well as dispelling the myth. The science is explored by citing known facts, studies and experts in the field.

This site from MedicineNet.com gives an MRI description, why they're performed, risks, and patient preparation. A thorough explanation of the process is provided.

The World Health Organization probes into the feared associations between electromagnetic fields (EMFs) and cancer. Check out "What is EMF?" for detailed summaries on what electromagnetic fields are and the possible health effects, or...

Read about Raymond V. Damadian, inventor of the magnetic resonance imaging (MRI), and learn how the MRI has impacted the field of medicine.

Provides readers with a list of the most common complementary and alternative therapies for osteoarthritis. Explains each and discusses any research on the effectiveness.

Read about the education and career of Raymond V. Damadian, inventor of the magnetic resonance imaging (MRI), and learn how the MRI has impacted the field of medicine.