Download - 6th Grade-Ch. 1 Sec. 3 Magnetic Earth
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Ch. 1 Sec. 3Magnetic Earth
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compass•device that has a magnetized needle that can spin freely
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Just like a bar magnet, Earth has a magnetic field surrounding it and 2 magnetic poles.
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Circulation of molten material in Earth’s core causes Earth’s magnetism
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Earth’s magnetic field 2:04
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• in northern Canada- about 1,250 km from geographic North Pole
magnetic North Pole
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magnetic declination• angle between geographic north
and the north to which a compass needle points
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Earth produces strong magnetic field can make magnets from
ferromagnetic materials
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Van Allen belts• 2 doughnut shaped regions located
1,000 - 25,000 km above Earth’s surface
• contain electrons & protons traveling at very high speeds
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solar wind
• stream of electrically charged particles flowing at high speeds from the sun
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The Solar Wind [00:38]
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magnetosphere
• region of Earth’s magnetic field shaped by the solar wind
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• glowing region caused glowing region caused by charged particles by charged particles from Sunfrom Sun
auroraaurora
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• northern hemisphere= northern hemisphere= Northern Lights Northern Lights (aurora (aurora
borealis)borealis)• southern hemisphere= southern hemisphere= Southern Lights (aurora Southern Lights (aurora
australis)australis)
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The Northern Lights: Aurora Borealis [01:59]
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magnetosphere
• region of Earth’s magnetic field shaped by the solar wind
![Page 21: 6th Grade-Ch. 1 Sec. 3 Magnetic Earth](https://reader036.vdocuments.mx/reader036/viewer/2022062405/5556d5a4d8b42a0f028b4683/html5/thumbnails/21.jpg)
magnetic declination• angle between geographic north
and the north to which a compass needle points
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How are Earth and a bar magnet similar?
• Both have a magnetic field surrounding it and two magnetic poles.
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• glowing region caused glowing region caused by charged particles by charged particles from Sunfrom Sun
auroraaurora
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Van Allen belts• 2 doughnut shaped regions located
1,000 - 25,000 km above Earth’s surface
• contain electrons & protons traveling at very high speeds
![Page 25: 6th Grade-Ch. 1 Sec. 3 Magnetic Earth](https://reader036.vdocuments.mx/reader036/viewer/2022062405/5556d5a4d8b42a0f028b4683/html5/thumbnails/25.jpg)
compass•device that has a magnetized needle that can spin freely
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• northern hemisphere= northern hemisphere= Northern Lights Northern Lights
aurora borealisaurora borealis