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Longitude + Latitude + Time Zones

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Andrew Johnson

on 14 February 2013

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Transcript of Longitude + Latitude + Time Zones

The tilt of the globe and seasons… Take one last admiring glance at your balloon….

POP IT!!!! 10. Draw a star on your earth where you would find CANADA.


Hint: WE are in the NORTHERN hemisphere. We are in the west. 9. Now, draw a longitude line that goes around the world in the opposite way from the Prime Meridian.

On one side label it 90 degrees EAST and on the other label it 90 degrees WEST! 8. Draw a line that goes up and down (longitude). Label it 0 degrees and label it “PRIME MERIDIAN” on one side.

On the other side label it 180 degrees and label it “IDL” for International Date Line 7. Between the Equator and the Antarctic mark a line that reads “Tropic of Capricorn” and label it as 23.5 S.

It is the furthest south latitude that the sun can appear directly overhead, occurring on December solstice. 6. Go to the SOUTHERN hemisphere.
At the very bottom of your balloon, draw a circle at 66.5 S (like the Arctic) and label it ANTARCTIC

4. Between the Arctic and the Equator is a line that goes all the way around. Draw it in

5. Label it “Tropic of Cancer” and label the degrees at 23. 5 degrees N.
Area farthest north that the sun can appear overhead.
No seasons between equator and tropics.
On June 21 (June solstice) the sun is directly above and summer starts! 3. Go to the very top of your balloon (NORTH) and draw a circle that will be at 66.5 degrees (it should be 2/3 to the top)
Label the degrees (66.5) and label it ARCTIC Let’s draw all of those on our “globe”… When crossing the International Date Line going WEST you advance one day. It is one of the GREAT CIRCLES as it encompasses the circumference of the Earth These lines run horizontally around the globe, parallel to each other. These lines work together to form a grid system on the globe which helps us to locate different places Only the area of the Earth between the Tropics of Cancer and Capricorn receive direct sunlight all year. Due to this tilt, the sun’s rays shine more directly on either the Northern or Southern hemispheres, giving us different seasons The Earth tilts at an angle of 23.5o 1. Blow up your balloon!
Not too big! You have to write on it!

2. Choose NORTH and draw a line through the middle of your balloon. Label this the “EQUATOR” and put 0 degrees on it Now, follow these directions and watch!!! The Earth rotates fully every 24 hours. Each of the 24 meridians equals one hour of time (150). When crossing the International Date Line going EAST you go back one day. Opposite of the prime meridian is the INTERNATIONAL DATE LINE running through 180o. This line allows for the change in time zones and exists as an agreed point that the day changes when you travel over it. They are NOT parallel to each other, however, like latitude, they are numbered in degrees and measured EAST and WEST of the PRIME MERIDIAN at 0o 2) They are all GREAT CIRCLES 1) They run through both the North and South Poles All lines of longitude have two things in common: LINES OF LONGITUDE Equator = 0o
North Pole = 90o N
South Pole = 90o S
Tropic of Cancer = 23.5o N
Tropic of Capricorn = 23.5o S Lines of latitude circle the globe at varying degrees NORTH and SOUTH of the equator. The lines are also given numbers measured in degrees. The longest of these lines is the EQUATOR, which circles the exact middle of the globe There are approximately 111 km between each degree of latitude. LINES OF LATITUDE The other purpose of these lines is to divide the globe into time zones (specifically done by lines of longitude). Latitude & Longitude
June 21st - Summer Solstice
(longest day of the year for N Hemisphere)

September 23rd - Autumnal Equinox (equal day and night)

December 22nd - Winter Solstice (shortest day of the year for N Hemisphere)

March 21st - Vernal Equinox (equal day and night) IMPORTANT DATES Say it with me
"That's 1-1-1, between them." AND Get into your A+B partners.
You both each need a time zone worksheet. Please share an Atlas.
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