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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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