The earth has a giant magnetic field caused by the liquid iron that constantly moves in the outer core. Scholars explore the magnetic fields of four different planets. The strength and alignment of the poles relates to the implications...

What is the largest electric field in the world? The world itself! This explains why you use a magnetic compass to determine direction. During the simulation, scholars add charges to their electric field to see how the field reacts....

In this magnetism worksheet, students answer ten questions about magnets, their magnetic poles, the magnetic lines of flux and how magnets work.

Researchers think they have evidence of a new planet deep in our solar system that is the size of Neptune and orbits the sun far beyond Pluto. The orbit simulator shows the orbits of our well-known planets, as well as Pluto and the comet...

[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]

[Free Registration/Login Required] Explore how magnets affect objects by dragging the bar magnet around and observing how the field lines within each area of the material change.

What a lovely little applet! You can speed/slow it, change it from AC to DC, plot the voltage as it rotates, change direction, control other information. Real neat.