STEM Guides to Maps by Kay Robertson

Author:Kay Robertson
Language: eng
Format: epub
Publisher: Rourke Educational Media
Published: 2014-01-15T00:00:00+00:00

Any location can be determined using degrees of longitude and latitude. For example, the city of Boston, pictured here, is located at 42° 22’ north latitude and 71° 2’ west longitude. How does that compare with the city of Bismarck, North Dakota, located at 46° 46’ north latitude and 100° 45’ west longitude?

STEM in Action ?

Take a look at some more cities of the United States located by latitude and longitude. Here is a list of five cities:

You can compare the measurements of longitude for each city:

Juneau, Alaska: 134° 25´

Montgomery, Alabama: 86° 18´

Just to make things simpler, drop the minutes:

Juneau, Alaska: 134°

Montgomery, Alabama: 86°

Now subtract the smaller number from the larger number:

134 – 86 = 48°

Juneau, Alaska is about 48 degrees west of Montgomery, Alabama! About how far north is Juneau, Alaska, compared to Montgomery, Alabama? To find out, compare the latitudes of each city, dropping the minutes:

Juneau, Alaska: 58°

Montgomery, Alabama: 32°

Then subtract the smaller number from the larger number:

58 – 32 = 26°

Juneau, Alaska, is 26 degrees north of Montgomery, Alabama!

Put the readings for latitude and longitude together, and you can say that Juneau, Alaska, is 48 degrees west, 26 degrees north of Montgomery, Alabama!

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