Map Skills Study Guide Please remember your all stars homework tomorrow 1 • The Earth is a sphere. 2 The Earth rotates on it’s axis. 3 • Two things that cause changes in the seasons are the revolution and the tilt of the earth on it’s axis. 4 • The imaginary line that circles the earth between the north and south poles is called the equator. 5 • Claudius Ptolemy was a Greek scholar. 6 • Grids on a map show location. 7 • Lines on a map that run parallel to the equator are called lines of latitude. 8 • Lines on a map that run from the North to the South poles are called lines of longitude. 9 • An instrument that measures distance traveled is called an odometer. 10 • The purpose of a map scale is to show relationship between a model and the real thing. 11 • Contour lines show the distance above sea level. 12 • Map makers use different projections to show a spherical object on a flat map. 13 • A Mercator projection map has a problem with distortion. 14 • Cartographers are map makers. 15 • An isthmus is a narrow strip of land that connects two larger bodies of land. 16 • Moisture that falls to the earth surface is called precipitation. 17 • Population density shows the amount of people concentrated in a specific location. 18 • The letters A.D. stand for Anno Domini which means in the year of our Lord. 19 • There are 100 years in a century. 20 • A time line shows specific events in order. 22 • We measure distance on a map with a map scale. 23 • Another name for 0 degrees longitude is the Prime Meridian.