1. LINES ON THE GLOBE

2. Special Lines on the Globe
MERIDIANS
PARALLELS
Prime Meridian
Arctic Circle
International
Date Line
Tropic of Cancer
Equator
Tropic of Capricorn
Antarctic Circle
OVERVIEW OF THE TOPIC

3. BASIC UNDERSTANDINGS Parallels
Latitude
– distance between two parallels measured north or south of the Equator.
Longitude
– distance between two meridians measured east or west of the Prime Meridian.
Parallels
– are imaginary lines running in an east-west direction around the Earth.
Meridians
– are imaginary lines that meet at the poles.
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4. THINGS Lines refer to “parallels and meridians”.
you need to remember
Lines refer to “parallels and meridians”.
Distances refer to “latitudes and longitudes”.
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5. Horizontal Lines Vertical Lines Latitude |Parallels
Longitude | Meridians
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6. Meridians and Parallels
– are imaginary
lines that help in establishing locations of places on Earth.
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7. PARALLELS AND MERIDIANS
*Horizontal
Lines
*Only one
Great Circle
*Run in an
east-west
direction
*Vertical Lines
*All Great
Circles
*Run from north
To south
*Determine
time zones
*Imaginary
lines
*Circles help in determining locations
*Intersecting
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8. PARALLELS OF LATITUDE
Equator – parallel located at the center and whose length is equal to the circumference of the earth.
Great Circle – largest parallel, the only Great Circle among the parallels.
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9. SPECIAL PARALLELS
Arctic Circle – located at 66 ½ o north of the equator. It marks the northernmost limit of the Sun’s oblique or slanting rays.
Tropic of Cancer – lies 23 ½ o north of the equator. Marks the northernmost limit of the Sun’s vertical rays.
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10. SPECIAL PARALLELS
Equator – designated Oo latitude, located at the center of the Earth and divides the Earth into the Northern and Southern Hemispheres.
The reference point in measuring distances north and south moving toward the poles.
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11. SPECIAL PARALLELS
Tropic of Capricorn - lies 23 ½ o south of the equator. Marks the southernmost limit of the Sun’s vertical rays.
Antarctic Circle - located at 66 ½ o south of the equator. It marks the southernmost limit of the Sun’s oblique or slanting rays.
©Jamaica Olazo

12. LATITUDE AND LONGITUDE
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13. MERIDIANS OF LONGITUDES
– line running vertically about the Earth.
Two meridians opposite each other form a Great Circle.
Meridians are arcs of Great Circles.
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14. Special
Meridians
1. Prime Meridian – line designated Oo longitude and which passes through Greenwich, England. Also called Greenwich Meridian.
It is the reference point in measuring distances eastward or westward.
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15. PRIME MERIDIAN
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16. Special
Meridians
2. International Date Line (IDL) – directly opposite of the prime meridian in a line designated 18Oo longitude.
It is not a straight line that deviates eastward and westward upon crossing certain places to allow land areas and island groups to have the same calendar day
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17. INTERNATIONAL DATE LINE
Red line marks the International Date Line

18. Download video @ https://www.youtube.com/watch?v=hPpWCTHjzQI
HOW INTERNATIONAL DATE LINE WORKS?
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19. DIFFERENCE BETWEEN THE TWO
Special
Meridians
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20. Download video @ https://www.youtube.com/watch?v=hPpWCTHjzQI
Play Video

21. THANK YOU!!!