http://www.ck12.org Chapter 24. Magnetism
FIGURE 24.14
The alignment of magnetic domains in
rocks on the ocean floor provide evidence
for Earth’s magnetic reversals.as Earth spins on its axis. The video at the URL below takes a closer look at how this occurs.
http://www.youtube.com/watch?v=O-V3yR2RZUE (9:34)
MEDIA
Click image to the left for use the URL below.
URL: http://www.ck12.org/flx/render/embeddedobject/5061FIGURE 24.15
Charged particles flow through Earth’s
liquid outer core, making Earth a giant
magnet.