Aurora earth’s grand show of light

Group 2Nguyễn Thị ThùyVũ Thi HồngBùi Thúy Nga

OUTLINE

Concept Causes and features Relationship and facts

CONCEPT

• Named for the Roman goddess of dawn

CONCEPT

• Produced by the collision of particles: - Electrons - Protons

CONCEPT

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

CONCEPT

IDENTIFICATION

• extending east to west, horizon to horizon

IDENTIFICATION

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

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?

WHAT CAUSES THE AURORA?

WHY DO AURORAS COME IN DIFFERENT COLORS?

THE MOST FAMILIAR COLOR OF THE AURORA – green light

LOW ENERGY ELECTRONS – red light

NITROGEN GIVES OFF A blue light

COLORS

PurplePink

 WHERE CAN WE SEE AN AURORA?

 WHERE CAN WE SEE AN AURORA?

 WHEN CAN WE SEE AN AURORA?

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

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

HOW IS THE AURORA RELATED TO THE SUN?

INTERESTING FACTS ABOUT AURORAS

INTERESTING FACTS ABOUT AURORAS

DOES AURORA MAKE SOUND?

SUMMARY

Concept

Causes and features

Relationship and facts

Aurora

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

Thanks for you attention