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Science 7 Maps of the Earth

Terms in this set (18)

magnetic north pole
the point to which a compass points
magnetic declination
the difference between true north and magnetic north measured in degrees
radar
a method of sending waves of energy from a satellite to an area of Earth being observed
contour lines
lines on a topographic map used to show elevation
reference point
a fixed point on Earth's surface from which direction and location can be determined
distortion
caused when you move information from a curved surface to a flat surface
latitude
the distance north or south of the equator
prime meridian
the line of longitude used as the origin in a system of coordinates
equator
imaginary circle halfway between the poles
cylindrical projection
a mapping method used by Geradus Mercator
scale
shows the relationship between the distance on Earth's surface and distance on the map
contour interval
The difference in elevation from one contour line to the next.
relief
the difference in elevation between one contour line and the next
index contour
a darker, heavier contour line
axis
imaginary line around which the Earth rotates
compass rose
shows you how the map is placed in relation to true north
elevation
height of an object above sea level
equal are projection
mapping method useful for determining distance
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