Describe how the northern lights are formed

 

Nordlys

 

Exercise 4

Describe what happens in the formation of the northern lights. Use the following words in your description: solar wind, electrically charged particles, magnetic field, polar region, atmosphere and excitation.

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Exercise 5

What does it mean when we say that an atom is excited?

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Exercise 6

Earlier in the program, the following exercise was given:

Which of the following do you believe are necessary for the formation of the northern lights on earth?
•    magnetic field
•    sunlight
•    reflection of sunlight
•    streams of particles from the sun
•    reflection of the light on the earth 
•    lightning
•    the earth’s atmosphere
•    electricity

Go back, and read your answer. Do you agree with the answer you gave earlier? What corrections might you make and why?

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