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Latitude and Longitude
How do we find places on maps?
Latitude
What is Latitude? • Lines of Latitude run horizontally • Latitude is measured in degrees. • The Equator is 0 degrees Latitude. • Lines of Latitude locate places North or
South of the Equator. • The North Pole is 90 degrees N Latitude, and
the South Pole is 90 degrees S Latitude.
Let’s Look at This Question:
How is latitude measured?
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0 15 15
30 45
60 75
90 105
120 135
150 165
180 30 45
60 75
90 105
120 135
150 165
180
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120 135
150 165
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120 135
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Let’s Look at This Question:
How is longitude measured?
Longitude
• Lines of Longitude run vertically. • They are also called Meridians. • The Prime Meridian is found in Greenwich,
England. • The Prime Meridian is 0 degrees Longitude. • Lines of Longitude locate places East or
West of the Prime Meridian. • There are 180 degrees of east Longitude,
and 180 degrees of west Longitude.
Discuss with your table partner
• If you were sailing the open ocean how
could you find out where your were at
without the use of gps?
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0 15 15
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90 105
120 135
150 165
180 30 45
60 75
90 105
120 135
150 165
180
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0 15 15
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120 135
150 165
180 30 45
60 75
90 105
120 135
150 165
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Let’s do some
plotting.
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0 15 15
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90 105
120 135
150 165
180 30 45
60 75
90 105
120 135
150 165
180
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On the coordinate system, plot the coordinates given in your notes:
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120 135
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State the coordinates for each of the letters in the figure above:
BASED ON THE ____________
OF _______________
Demo
BASED ON EARTH’S
EACH HOUR,
EARTH ROTATES
(360°/24hrs)
Example: Two students record a
difference in local time of two
hours. How many degrees of
longitude apart are they?
Summary
1.What do lines of Latitude and Longitude combine to make? A grid. 2.Compare and Contrast Latitude and Longitude. Latitude- horizontal, north- south, parallels Longitude- vertical, east-west, meridians 3.What is 0 degrees Latitude? Equator 4.What is 0 degrees Longitude? Prime Meridian 5.How many time zones do we have in the U.S.A.? 4- Eastern, Central, Mountain, Pacific 6. Explain the difference between Local Time, and Universal
Time. Local time- used everyday Universal Time- is used for a planetary event, or for
astronomy
