Complete the crossword, then click on "Check" to check your answer. If you are stuck, you can click on "Hint" to get a free letter. Click on a number in the grid to see the clue or clues for that number.
A line drawn almost parallel to the 180 degree longitude meridian that marks the location where each day officially begins.
4.
An imaginary circle drawn on the Earth's surface that has its center synchronize to the center of the planet. Represents the full circumference of earth.
5.
Map process used to represent the Earth's three-dimensional surface onto a two-dimension map. This process creates some type of distortion on the map.
6.
The materials subsystem is a _______ system. No exchange of energy or matter across the boundary.
7.
north-south measurement of position on the Earth. It is defined by the angle measured from a horizontal plane located at the Earth's center that is perpendicular to the polar axis.
9.
The property of a map projection that maintains equal areal relationships in all parts of the map.
11.
A cylindrical projection. Area distortion makes continents in the middle and high latitudes seem larger than they should be.
12.
Another term for line of longitude.
13.
True shape of the Earth, which deviates from a perfect sphere because of a slight bulge at the equator. Also called Oblate spheroid.
15.
The property of a map projection that maintains proper shapes of surface features.
Down:
2.
Responsible for the first accurate estimate for the circumference of the earth.
3.
Location on the Earth that has a latitude of 0°.
8.
Also called a polar or planar projection. Distortion is greatest near the equator.
10.
The location from which longitudes are measured. Has the measure of 0° of longitude. It was selected by international agreement to run through Greenwich, England.