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Chapter 2 Outline


Chapter Two: Earth In Space



Terms to Identify

Section 1


Solar System- The sun and the groups of bodies that revolve around it.


Planets- Major bodies that are in orbit in the solar system


Moons- Smaller objects that orbit a planet


Satellite- A body that orbits a larger body can also be called a satellite


Solar Energy- Energy that comes from the sun, and reaches the earth as light and heat


Rotation- earth makes one complete rotation on its axis which takes 24 hours. Rotates in a west to east direction.


Revolution- Earth rotates around the sun once and takes 365 ¼ days to complete, a year’s time.



Section 2


Tropics- Warm low latitude areas near the equator.


Polar Regions- High Latitudes and exist near the north and South Poles, little solar energy.


Solstice- The time that the earth’s poles point at their greatest angle towards or away from the sun.  December 21st and June 21st


Equinox- Earth’s poles are not pointed toward or away from the sun. March 21 and September 22




Tropic of Capricorn- Southern Hemisphere 23 ½ degrees south of the equator


Antarctic Circle- Parallel 66 ½ degrees south of the equator, beyond sunlight always shines


Arctic Circle- Parallel 66 ½ degrees north of the equator, beyond no sunlight shines


Tropic of Cancer- Northern Hemisphere 23 ½ degrees north of the equator



Beatrice Public Schools320 N 5th StreetBeatrice, NE  68310402-223-1500

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