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Chapter 3 Section 2 The Sun. Structure &Atmosphere of the Sun. Starting with the outside working in. Corona. Corona ends in A A – stands for atmosphere Atmosphere floats above the Sun. Chromosphere. Chromosphere – outside below Corona

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structure atmosphere of the sun
Structure &Atmosphere of the Sun
  • Starting with the outside working in.
  • Corona ends in A
  • A – stands for


  • Atmosphere floats
  • above the Sun
  • Chromosphere – outside below Corona
  • Chrome wheels go on outside of the car.
  • The tires on them are usually super thin

(just like the




  • They say the real beauty is on the inside….Only ugly people say that.
  • Otherwise, why we would we have models or Mr. Pullins.
  • We take the pictures or photos on the outside right… The photosphere is the visible outside layer of the sun we see.
convective zone
Convective Zone
  • Convective Zone sounds like convict.
  • We know what we do with convicts…
  • We lock them up away from society
  • The Convective Zone is under the photosphere just like convicts are beneath society.
  • Stinky convicts make lots of farts… just like how gases circulate in the Convective Zone
radiative zone
Radiative Zone
  • Only dense people work near radiation.
  • These thick-headed people think they can attain super powers.
  • Just like the radiative zone of the sun… thick and dense
energy production
Energy Production
  • How sun gets it energy… Nuclear Fusion
  • Nuclear Fusion – two or more small nuclei join together to form a larger nucleus
  • This process releases energy
solar activity
Solar Activity
  • Sunspots – cool dark areas on photosphere
  • Solar Flare – super hot and bright eruptions…
  • can extend thousands of kilomometers in seconds
earth s movement
Earth’s Movement
  • Rotation- the spinning of Earth on it’s axis.
    • Causes night and day
    • Takes about 24 hours
  • Revolution- the movement of Earth in space around the sun.
    • Takes about 365.25 days
longitude vs latitude
Longitude vs. Latitude
  • Longitude- lines that run vertically on the globe.
    • Prime meridian- 0 degrees on the globe.
      • Runs through the Eastern portion of Africa.
latitude vs longitude
Latitude vs. Longitude
  • Latitude- lines that run horizontally on the globe.
    • Equator- 0 degrees on the globe.
  • Latitude lines are used to mark out 3 different types of regions
    • Tropic
    • Temperate
    • Polar
tropic zone
Tropic Zone
  • Tropic- between the latitudes of 23.5 degrees north (Tropic of Cancer) and 23.5 degrees south (Tropic of Capricorn).
    • Generally hot temperature.
    • Sun’s rays hit Earth directly at the equator.
temperate zone
Temperate Zone
  • Temperate- between the latitudes 23.5 degrees and 66.5 degrees.
    • Generally cooler than the Tropics.
    • The USA is in a Temperate zone.
the seasons
The Seasons
  • The seasons are caused by the tilt of Earth’s axis as it moves around the sun.
  • The Earth is tilted at 23.5 degrees.
  • (Take Notes)
the seasons1
The Seasons
  • Solstice- occurs when sun is directly overhead at latitudes 23.5 degrees north or south.
    • Summer solstice- June 21 in the Northern hemisphere.
      • Beginning of summer.
    • Winter solstice- December 21 in the Northern hemisphere.
      • Beginning of winter.
the seasons2
The Seasons
  • Equinox- neither hemisphere is tilted towards the sun.
    • The lengths of daylight and darkness are approximately equal.
    • Vernal equinox- March 21 in the Northern hemisphere.
    • Fall equinox- Sept 22 in the Northern hemisphere.
Incoming solar energy:
    • 30% reflected back into space by clouds, gases, and Earth’s surface.
    • 20% absorbed by clouds.
    • 50% absorbed by Earth’s surface.
      • Heats up the Earth.