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Chapter 2

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Across
1
Ratio between distances on a map and actual distances on the surface of the Earth
6
Distance in degrees east or west of the prime meridian
11
Science of map making
13
Use of sound waves to detect and measure objects underwater
15
180 degree meridian which serves as the transition line for calendar days
16
Horizontally circles Earth halfway between the north and south poles
17
Mapping system that uses worldwide databases from remote sensing to create layers of information that can be superimposed upon each other to form a comprehensive map
18
Map that has parallel lines of latitude and longitude
19
Detailed maps showing the hills and valleys of an area
20
Made by projecting points and lines from a globe onto a cone
Down
2
Represents zero degree longitude
3
Record reflected wavelengths of energy from Earth's surface
4
Connects points of equal elevation
5
Used to show the distribution, arrangement, and type of rocks located below the soil
7
Satellite navigation system that allows users to locate their exact position on Earth
8
Difference in elevation between two side-by-side contour lines
9
Explains what map symbols represent
10
Made by projecting points and lines from a globe onto a piece of paper that touches the globe at a single point
12
Gathering data about Earth using instruments mounted on satellites, airplanes, or ships
14
Lines on a map running parallel to the equator