Mapping Earth’s Surface

1. Mapping Earth’s Surface Chapter 1

2. A framework of lines that helps to transfer points on Earth’s surface onto a flat map. map projection

3. The size and shape of landmasses become more distorted toward the north and south poles on this type of projection. Mercator projection

4. One half of the sphere that makes up Earth’s surface. hemisphere

5. A list of symbols used on a map and their meanings. key

6. A spherical model of Earth’s entire surface. globe

7. This is how many degrees you travel if you circle the globe completely and return to the spot form where you departed. 360⁰

8. The distance in degrees north or south of the equator. latitude

9. This is the latitude of the North Pole. 90⁰

10. These are the units used by scientists to locate positions on Earth’s surface. degrees

11. The distance in degrees east or west of the prime meridian. longitude

12. Used to relate distance on a map or globe to distance on Earth’s surface. scale

13. A flat model of all or part of Earth’s surface as seen from above. map

14. The line that makes a half circle form the North Pole to the South Pole and that passes through Greenwich, England. prime meridian

15. An imaginary line that circles Earth halfway between the North and South poles. equator

16. On a map, a picture used by mapmakers to stand for features on Earth’s surface. symbol

17. One bit of a digitized image, often appearing as a small square or dot. pixel

18. A satellite-based system that can precisely determine latitude and longitude for points on Earth’s surface. Global Positioning System (GPS)

19. This is how many satellites above the horizon there must be at any given time for the GPS to work. At least 3

20. The difference in elevation from one contour line to the next. contour interval

21. A system of computer hardware and software used to produce interactive maps. Geographic Information System

22. A photograph taken by cameras mounted in airplanes. aerial photograph

23. Converting information to numbers for use by a computer. digitizing

24. This is why computer mapmakers digitize map data. so they can display the data on a computer screen

25. A line on a topographic map that connects points of equal elevation(the further apart these lines are, the easier it is to walk up the slope). contour line

26. On a topographic map, a heavier contour line that is labeled with elevation of that contour line. index contour

27. A picture of the land surface based on computer data collected from satellites. satellite image

28. A map that shows the surface features of an area. topographic map

29. The process of gathering data for a map by using instruments and the principles of geometry to determine distance and elevations. surveying

30. The difference in elevation between the highest and lowest parts of an area. relief

31. A landform made up of flat or gently rolling land with low relief. plain

32. This is the vast, flat or gently rolling grassland in the interior of North America. Great Plains

33. A group of mountains that are closely related in shape, structure, and age. mountain range

34. A feature of topography formed by the processes that shape Earth’s surface (ex. hill, valley). landform

35. A landform with high elevation and high relief (ex. Rocky Mountains). mountain

36. A large area of land where the topography is made up mainly of one type of landform. landform region

37. The shape of the land determined by elevation, relief, and landforms. topography

38. A landform that has high elevation and a more or less level surface. plateau

39. Height above sea leveland also one of the major differences between a coastal plain and an interior plain. elevation

40. This is shown on a topographic map by hachured contour lines. depression

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