The ADVenture Begins...

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The ADVenture Begins...
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Direction

• Direction is the point towards which you are
  looking or moving.
• Most of us already know the cardinal directions
  of the compass north, south, east and west.
• Northeast, southeast, southwest, and northwest
  are known as intermediate points on a compass
  rose.

Intermediate Points
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Magnetic Compass

• It is a more reliable method of determining
  direction.
• Its needle points to the magnetic north pole.
• It is into 360 parts called degrees ().
• The degrees are numbered in a clockwise direction
  starting from north (0).

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Maps Atlases

• A map represents a part of the real surface of
  the Earth.
• An atlas is a reference book containing many
  maps.
• Because the map is much smaller than the real
  surface it represents, symbols and colors are
  used to show the main features.
• A legend (key) of the map is used to interpret
  unknown symbols.

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• A symbol is something that represents or stands
  for something else.
• Mapmakers tend to use the same system of symbols
  on all maps they make.
• These are called conventional symbols.

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G.P.S. (Global Positioning System)
The GPS is a system of 24 satellites that all
work together to create an exact view of Earth.
Using advanced technology, these satellites
compare one location to a grid of numbers and
then find a location, to a great degree of
accuracy!
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Atlas Maps of Various Types

• Physical maps show the shapes of the landmasses
  and water bodies.
• They use a system of colors to indicate the
  height of the land surface.

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1. Political maps show the countries, their
   provinces, and the main cities.

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1. Theme maps provide information about specific
   topics such as population, climate, and resources.

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How can we describe the exact location of a
specific place on Earth?

• The parallels also known as lines of latitude
  - are horizontal lines that start at the equator
• The equator is the line that divides the Earth
  into two hemispheres the North Hemisphere and
  the Southern Hemisphere.
• Latitude is measured from 0 to 90N in the
  Northern Hemisphere and 0 to 90S in the
  Southern Hemisphere.

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• The meridians also known as lines of
  longitude -are vertical lines that form
  half-circles connecting the North and South
  Poles.
• The prime meridian divides the globe into two
  hemispheres the western hemisphere and the
  eastern hemisphere.
• Longitude is measured from 0 to 180E in the
  Eastern Hemisphere and 0 to 180W in the western
  Hemisphere.

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• If we combine the lines of latitude and longitude
  we get a grid (a network of intersecting lines).
• These intersecting lines are coordinates
  (intersecting lines) was developed to locate
  places with precision on the surface of the
  globe.

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ngitude.html