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19-1 The Sun
The Sun
12
Science
6th Grade
04/26/2009

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Cards

Term
The Sun's energy comes from the process called ______ ____________.
Definition
nuclear fusion
Term
The intermost layer of the sun's atmosphere is the _____________
Definition
photosphere
Term
The middle layer of the sun is the ____________.
Definition
chromosphere
Term
The outmost layer of the sun is the ___________.
Definition
corona
Term
When can the photsphere be seen?
Definition
it is what we always see.
Term
When can the chromosphere be seen?
Definition
at the beginning and end of an eclipse
Term
When can the corona be seen?
Definition
in the middle of an eclipse
Term
What is a sun spot?
Definition
areas of gas on the sun that are cooler than the gases around them
Term
What are prominences?
Definition
redish loops of gases that link different sunspot regions
Term
What are solar flares?
Definition
When energy heats gases on the sun to millions of degrees celcius causing hydrogen gas to explode and expand into space.
Term
Short term changes in the climate on Earth may be related to ________.
Definition
sun spot cycles
Term
When solar flares increase solar wind in the corona, what do they cause in Earth's upper atmosphere?
Definition
magnetic storms
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