LINES ON THE

GLOBE

Special Lines on the GlobeMERIDIAN

SPARALLEL

SPrime Meridian

InternationalDate Line

Arctic Circle

Tropic of Cancer

Equator

Tropic of Capricorn

Antarctic Circle

OVERVIEW OF THE TOPIC

BASIC UNDERSTANDINGS

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.

©Jamaica Olazo

Lines refer to “parallels and meridians”.

Distances refer to “latitudes and longitudes”.

THINGSyou need to remember

©Jamaica Olazo

Latitude |Parallels Longitude | MeridiansHorizontal Lines Vertical Lines

©Jamaica Olazo

Meridians and Parallels – are imaginary lines that help in establishing locations of places on Earth. ©Jamaica Olazo

PARALLELS AND MERIDIANS

*Imaginarylines

*Circles help in determining

locations

*Intersecting

*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

©Jamaica Olazo

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.

©Jamaica Olazo

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.

SPECIALPARALLELS

©Jamaica Olazo

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.

SPECIALPARALLEL

S

©Jamaica Olazo

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.

SPECIALPARALLELS

©Jamaica Olazo

Play Video

Download video @https://www.youtube.com/watch?

v=swKBi6hHHMA

LATITUDE AND LONGITUDE

MERIDIANSOF LONGITUDES

Two meridians opposite each other form a Great Circle.

Meridians are arcs of Great Circles.

Meridians – line running vertically about the Earth.

©Jamaica Olazo

SpecialMeridians

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.

©Jamaica Olazo

PRIME MERIDIAN

©Jamaica Olazo

SpecialMeridians

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

©Jamaica Olazo

INTERNATIONAL DATE LINE

Red line marks the International Date Line

Play Video

Download video @https://www.youtube.com/watch?v=hPpWCTHjzQI

HOW INTERNATIONAL DATE LINE WORKS?

SpecialMeridians

DIFFERENCE BETWEEN THE TWO

©Jamaica Olazo

Play Video

Download video @https://www.youtube.com/watch?v=hPpWCTHjzQI

THANK YOU!!!