everything about aurora

1. Group 2
Nguyễn Thị Thùy
Vũ Thi Hồng
Bùi Thúy Nga

2. OUTLINE
Concept
Causes and
features
Relationship
and facts

3. CONCEPT
• Named for the Roman goddess of dawn

4. CONCEPT
• Produced by the collision of particles:
- Electrons
- Protons

5. CONCEPT
• Concluding 2 forms:
+ northern lights
+ southern lights
• In many colors: red, yellow, green, blue and violet.

6. CONCEPT

7. IDENTIFICATION
• extending east to west, horizon to horizon

8. IDENTIFICATION
• stretch across the night sky
• spread out in multi-colored rays

9. 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?

10. WHAT CAUSES THE AURORA?

11. WHY DO AURORAS COME IN DIFFERENT COLORS?

12. THE MOST FAMILIAR COLOR OF THE
AURORA –

13. LOW ENERGY ELECTRONS –

14. NITROGEN GIVES OFF A blue light

15. COLORS
PurplePink

16. WHERE CAN WE SEE AN AURORA?

17. WHERE CAN WE SEE AN AURORA?

18. WHEN CAN WE SEE AN AURORA?

19. 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

20. HOW IS THE AURORA RELATED TO THE SUN?
Record of linkage between sunspot and aurora
activity

21. HOW IS THE AURORA RELATED TO THE SUN?

22. INTERESTING FACTS ABOUT AURORAS

23. INTERESTING FACTS ABOUT AURORAS

24. DOES AURORA MAKE SOUND?

25. SUMMARY
Concept
Causes and features
Relationship and facts
Aurora

26. REFERENCES
• www.exploratorium.edu/aurora.html
• www.wikipedia.org/aurora
• www.nothernlightcenter.ca/aurora.html

27. Thanks for you attention