Mapping Earths Surface Chapter 1 Slide 2 A framework of lines
that helps to transfer points on Earths surface onto a flat map.
map projection Slide 3 The size and shape of landmasses become more
distorted toward the north and south poles on this type of
projection. Mercator projection Slide 4 One half of the sphere that
makes up Earths surface. hemisphere Slide 5 A list of symbols used
on a map and their meanings. key Slide 6 A spherical model of
Earths entire surface. globe Slide 7 This is how many degrees you
travel if you circle the globe completely and return to the spot
form where you departed. 360 Slide 8 The distance in degrees north
or south of the equator. latitude Slide 9 This is the latitude of
the North Pole. 90 Slide 10 These are the units used by scientists
to locate positions on Earths surface. degrees Slide 11 The
distance in degrees east or west of the prime meridian. longitude
Slide 12 Used to relate distance on a map or globe to distance on
Earths surface. scale Slide 13 A flat model of all or part of
Earths surface as seen from above. map Slide 14 The line that makes
a half circle form the North Pole to the South Pole and that passes
through Greenwich, England. prime meridian Slide 15 An imaginary
line that circles Earth halfway between the North and South poles.
equator Slide 16 On a map, a picture used by mapmakers to stand for
features on Earths surface. symbol Slide 17 One bit of a digitized
image, often appearing as a small square or dot. pixel Slide 18 A
satellite-based system that can precisely determine latitude and
longitude for points on Earths surface. Global Positioning System
(GPS) Slide 19 This is how many satellites above the horizon there
must be at any given time for the GPS to work. At least 3 Slide 20
The difference in elevation from one contour line to the next.
contour interval Slide 21 A system of computer hardware and
software used to produce interactive maps. Geographic Information
System Slide 22 A photograph taken by cameras mounted in airplanes.
aerial photograph Slide 23 Converting information to numbers for
use by a computer. digitizing Slide 24 This is why computer
mapmakers digitize map data. so they can display the data on a
computer screen Slide 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 Slide 26 On a
topographic map, a heavier contour line that is labeled with
elevation of that contour line. index contour Slide 27 A picture of
the land surface based on computer data collected from satellites.
satellite image Slide 28 A map that shows the surface features of
an area. topographic map Slide 29 The process of gathering data for
a map by using instruments and the principles of geometry to
determine distance and elevations. surveying Slide 30 The
difference in elevation between the highest and lowest parts of an
area. relief Slide 31 A landform made up of flat or gently rolling
land with low relief. plain Slide 32 This is the vast, flat or
gently rolling grassland in the interior of North America. Great
Plains Slide 33 A group of mountains that are closely related in
shape, structure, and age. mountain range Slide 34 A feature of
topography formed by the processes that shape Earths surface (ex.
hill, valley). landform Slide 35 A landform with high elevation and
high relief (ex. Rocky Mountains). mountain Slide 36 A large area
of land where the topography is made up mainly of one type of
landform. landform region Slide 37 The shape of the land determined
by elevation, relief, and landforms. topography Slide 38 A landform
that has high elevation and a more or less level surface. plateau
Slide 39 Height above sea level and also one of the major
differences between a coastal plain and an interior plain.
elevation Slide 40 This is shown on a topographic map by hachured
contour lines. depression Slide 41
