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Science, Evolution, and Creationism, by the National Academies, focuses on teaching evolution in today's classrooms. Check out the other publications in our online store.
This is a drawing a magnetic field.
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The Magnetic Field

The force of magnetism causes material to point along the direction the magnetic force points. Here's another picture of how this works.

This picture shows where the magnetic poles of the Earth are to be found. The picture also shows that these poles drift over the surface of the Earth over time.

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Our online store includes issues of NESTA's quarterly journal, The Earth Scientist, full of classroom activities on different topics in Earth and space science, as well as books on science education!

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Traveling Nitrogen Classroom Activity Kit

Check out our online store - minerals, fossils, books, activities, jewelry, and household items!...more

The Sun's Magnetic Field

Text for this level has not been written yet. Please see the "Intermediate" text for this page if you want to learn about this topic. To get to the "Intermediate" text, click on the blue "Intermediate"...more

Sunspots and Magnetic Fields

You probably have magnets on your refrigerator holding up some of your artwork or a photograph of a friend or family. Did you know that it is magnetic fields (which all magnets have) that make sunspots...more

Basic Facts About Bounce Motion

Some particles do move along the field lines of the Earth. They bounce back and forth from one pole of the Earth to the other....more

Basic Facts About the Effects of Magnetic Fields on Charged Particles

Magnetic fields can cause particles to move in these three ways: Spiral Motion Bounce Motion Drift Motion ...more

Basic Facts About Spiral Motion

Sometimes protons and electrons are forced to spiral around magnetic field lines. Electrons cirle the field line in one direction, protons in the opposite direction....more

Scientists Have Found Ancient Mars to be Like Earth

Scientists have found that ancient Mars was similar to Earth! Magnetic field lines flow from the north pole to the south, but sometimes they switch. When scientists look at the lines, they can see how...more

The Moon's Magnetosphere

Unlike the Earth, which has a protective shield around it called the magnetosphere, the surface of the moon is not protected from the solar wind. This picture shows the magnetosphere surrounding the Earth,...more

Windows to the Universe, a project of the National Earth Science Teachers Association, is sponsored in part is sponsored in part through grants from federal agencies (NASA and NOAA), and partnerships with affiliated organizations, including the American Geophysical Union, the Howard Hughes Medical Institute, the Earth System Information Partnership, the American Meteorological Society, the National Center for Science Education, and TERC. The American Geophysical Union and the American Geosciences Institute are Windows to the Universe Founding Partners. NESTA welcomes new Institutional Affiliates in support of our ongoing programs, as well as collaborations on new projects. Contact NESTA for more information. NASA ESIP NCSE HHMI AGU AGI AMS NOAA