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Mapping Our World - Ch 2

Name______________________________________________
Across
Information-gathering satellite that uses visible light and infrared radiation to map Earth's surface.
Line on a topographic map that connects points of equal elevation.
Map that uses contour lines, symbols, and color to show changes in the elevation of Earth's surface and features such as mountains, bridges and rivers.
Satellite-based navigation system that permits a used to pinpoint his or her exact location on Earth.
Distance is degrees east and west of the prime meridian.
Imaginary line that lies at 0 degrees latitude and circles Earth midway between the north and south poles, dividing Earth into the northern hemisphere and the southern hemisphere.
Difference in elevation between two side-by-side contour lines on a topographic map.
Down
The 180 degrees meridian, which serves as the transition line for calendar days
A map that shows the distribution, arrangement and types of rock below the soil, and other geologic features.
Distance is degrees north and south of the equator.
Use of sound waves to detect and measure objects underwater.
Map useful in plotting long-distance trips by boat or plane made by projecting points and lines from a globe onto a piece of paper that touches the globe at a single point
Map that is highly accurate for small areas, made by projecting points and lines from a globe onto a cone.
Key that explains what the symbols on a map represent.
Map with parallel lines of latitude and longitude that shows true direction and the correct shapes of landmasses but distorts areas near the poles.
Process of gathering data about Earth from instruments far above the planet's surface.
Imaginary line representing 0 degree longitude, running from the north pole, through Greenwich, England, to the south pole.
Ratio between the distances shown on a map and the actual distances on Earth's surface.
Science of mapmaking.