ESC 1000L Space
Science Video Notes Name: ____________
Please watch the following video series. Take notes on each of the chapters of the disk. When you are finished each chapter, write questions that a student should be able to answer if she/he viewed this disk. You should have at least two or more questions for each chapter.
Magnetic Storm (2003) NOVA
What is weakening Earth’s invisible shield? Magnets have the power
to attract and repel—sometimes on a massive scale. The Earth’s molten core—a
violent mix of searing heat, crushing pressure, and a billion trillion tons of
liquid iron—creates an invisible shield that surrounds the globe, guarding
against a constant barrage of deadly radiation from space. But over the last
few decades, the Earth’s magnetic field has weakened dramatically, intriguing
scientists across the globe.
The power
generated 2000 miles beneath our feet protects us every day, but the loss of
Earth’s magnetic field is a brewing storm that affects us all. While experts
research and debate, persistent questions remain. Is a rare geomagnetic
reversal the cause of earth’s inner turmoil? And if the magnetic field were to
vanish altogether, would Earth become as lifeless as Mars?
Travel from
Special DVD features include: materials and activities for educators; a link to the NOVA Web site; scene selections; closed captions; and described video for the visually impaired.