Distinguish among the Earth's magnetic field, a magnet, and the fields that surround a magnet and an electromagnet SPI 0807.12.3

Links verified 9/21/2014

1. Earth's Inconstant Magnetic Field - Our planet's magnetic field is in a constant state of change, say researchers who are beginning to understand how it behaves and why. [includes a link to a streaming audio version of this page]
2. Earth's Magnetic Field - high quality transparency master
3. Earth's Magnetic Field - explanation from Wikipedia
4. Earth's Magnetic Field - includes several good illustrations
5. Earth's Magnetic Field - Windows to the Universe has three separate levels of explanation to select
6. Earth's Magnetic Field - part of an explanation of compasses from How Stuff Works
7. Earth's Magnetic Field: An Overview - lengthy article from the British Geological Survey [11 pages if printed]
8. Earth's Magnetic Field Interactive - drag the compass around in the space near Earth to observe the shape of out planet's magnetic field [from Windows to the Universe] or
9. Exploring Magnetic Fields - [grades 6-8] lesson plan from Science Net Links - includes activity sheets to print and links to other related lesson plans
10. Exploring: The Earth as a Magnet - a three page lesson plan
11. Experiments with magnets and our surroundings - lots of activities provided by "Magnet Man"
12. Giant Breach in Earth's Magnetic Field - article from NASA
13. Introduction to Geomagnetism - an IMAGE satellite tutorial on Earth's magnetic field from NASA which includes links to lesson plans
14. Investigating the Earth's Magnetism - five page lesson plan
15. The Invisible World of Magnetic Fields - includes a simple animation
16. Magnetic Field Basics - explanation from Physics4Kids
17. Magnetic Field - a good description from Wikipedia
18. Magnetic Field of a Bar Magnet - The magnetic field of a bar magnet can be investigated with this compass needle applet.
19. Magnetic Field of the Earth - a good explanation from Hyperphysics plus links to other information
20. Magnetic Lines of Force - high quality transparency master
21. Magnetic Storm - This NOVA page includes links to aurora pictures and a discussion of the weakening of Earth's magnetic field
22. The North Pole Could Soon Drift Over to Siberia - interesting article from Smithsonian
23. Planetary Magnets - Earth is a good example of a planetary dipole
24. What is a Magnetic Field? - good explanation and good illustrations - from Cool Magnet Man

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