Sunday 13 November 2016

weather and climate

The Seasons 



  • The earth rotates once every 24 hours on its imaginary axis  
  • The earth axis os always tilted at the same angle.
  • This rotation causes day and night 
  • The earth revolves around the sun 
  • This path is called orbit.
  • The sun does not move it stays in one position. 
  • The earth takes 365 1/4 days to revolve around the sun.
  • The revolution of the earth causes seasons 

Summer and winter days


summer in the southern hemisphere:

  • summer solstice sun's rays fall directly over the tropic of Capricorn -22 December
  • the southern hemisphere is tilted towards the sun 
  • the southern hemisphere has summer
  • experience long days and short nights 
  • south pole has 24 hours of daylight.

Winter in the southern hemisphere :


Winter Solstice:

  • the sun's rays fall directly over the tropic of cancer-21 June (winter solstice the southern hemisphere is tilted away from the sun 
  • the southern hemisphere has winter experience short days and long nights 
  • south pole has a 24 hour night 

Autumn And Spring In The Southern Hemisphere:


  • the sun's rays fall directly over the equator -21 march 
  • neither hemisphere is tilted towards the sun 
  • the southern hemisphere has autumn 
  • all places on the earth have a 12 hour day and night
  • 21 march -autumn equinox 

Spring In The Southern Hemisphere:

  • the sun's rays fall directly over the equator- 23 September
  • neither hemisphere is tilted towards the sun 
  • the southern hemisphere has spring 
  • all places on earth have a 12 hour day and night  
  • 21 march- Autumn Equinox

 

Weather:
the state of the atmosphere at a particular place and time as regards heat, cloudiness, dryness, sunshine, wind, rain, etc.

Climate:
he weather conditions prevailing in an area in general or over a long period.

weather maps:
a map showing the state of the weather over a large area

Climate maps
Climate maps. give general information about the climate and precipitation (rain and snow) of a region. Cartographers, or mapmakers, use colors to show different climate or precipitation zones. Economic or resource maps.










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