Use LEFT and RIGHT arrow keys to navigate between flashcards;
Use UP and DOWN arrow keys to flip the card;
H to show hint;
A reads text to speech;
17 Cards in this Set
- Front
- Back
|
Latitude |
Horizontal lines that measure how 'north' or 'south' you are on Earth. |
|
|
Longitude |
Vertical lines that measure how 'east' or 'west' you are on Earth. |
|
|
Equator |
0° Latitude; The line of latitude that goes around the Earth like a belt. |
|
|
Prime Meridian |
0° Longitude; The line of longitude that goes around the Earth vertically and passes through Greenwich, England. |
|
|
Polaris |
The North Star; our latitude on Earth is equal to the altitude of this star. |
|
|
Time Zones |
Every 15° Longitude has a change of 1 hour. The further west you travel, the earlier it will get. The further east you travel, the later it will get. |
|
|
Minutes |
A smaller description of your location. 60' = 1° |
|
|
The EXACT Shape of the Earth |
Oblate Spheroid; a slightly squished sphere that is longer across the equator than it is across the prime meridian. |
|
|
Contour Lines |
Lines that show equal points of elevation. (Every point on this line has the same elevation.) |
|
|
Contour Intervals |
The difference in elevation between any two contour lines. (the change in elevation ÷ the number of spaces between) |
|
|
Contour Relief |
The TOTAL difference between the highest and lowest elevations on your map. |
|
|
Gradient |
A number that describes how steep a slope is. |
|
|
The Formula for Gradient |
Change in Elevation ÷ Distance |
|
|
Profiles |
A side-view image of a mountain |
|
|
How to Tell Which Direction a River is Flowing |
Contour Lines will form a 'V' and point Upstream. Remember: Things fall from up to down. |
|
|
How to Tell if a Slope is Steep |
When contour lines are very close together |
|
|
Hachure Marks |
Little "teeth marks" that are placed on a contour line to indicate that the elevation is going down instead of up. |
