Aurora- earth’s grand show of light
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Transcript of Aurora- earth’s grand show of light
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Aurora earth’s grand show of light
Group 2Nguyễn Thị ThùyVũ Thi HồngBùi Thúy Nga
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OUTLINE
Concept Causes and features Relationship and facts
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CONCEPT
• Named for the Roman goddess of dawn
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CONCEPT
• Produced by the collision of particles: - Electrons - Protons
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CONCEPT
• Concluding 2 forms:+ northern lights+ southern lights• In many colors: red, yellow, green, blue and violet.
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CONCEPT
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IDENTIFICATION
• extending east to west, horizon to horizon
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IDENTIFICATION
• stretch across the night sky• spread out in multi-colored rays
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CAUSES AND FEATURES
• What causes the aurora?• Why do auroras come in different colors?• Where can we see an aurora? • When can we see an aurora?
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WHAT CAUSES THE AURORA?
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WHY DO AURORAS COME IN DIFFERENT COLORS?
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THE MOST FAMILIAR COLOR OF THE AURORA – green light
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LOW ENERGY ELECTRONS – red light
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NITROGEN GIVES OFF A blue light
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COLORS
PurplePink
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WHERE CAN WE SEE AN AURORA?
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WHERE CAN WE SEE AN AURORA?
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WHEN CAN WE SEE AN AURORA?
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HOW IS THE AURORA RELATED TO THE SUN?
A solar storm blasts out from the Sun and heads towards Earth’s protective shield, the magnetosphere
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HOW IS THE AURORA RELATED TO THE SUN?Record of linkage between sunspot and aurora activity
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HOW IS THE AURORA RELATED TO THE SUN?
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INTERESTING FACTS ABOUT AURORAS
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INTERESTING FACTS ABOUT AURORAS
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DOES AURORA MAKE SOUND?
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SUMMARY
Concept
Causes and features
Relationship and facts
Aurora
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REFERENCES• www.exploratorium.edu/aurora.html• www.wikipedia.org/aurora• www.nothernlightcenter.ca/aurora.html
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Thanks for you attention