Unit 1 Vocabulary

Unit 1 Vocabulary Part AMercator Map Mercator Map a rectangular map used as a navigation tool in which the lines for longitude and latitude are straight and parallel. Distortions increases as you move further from the equator. DistortionDistortionthe loss of accuracy in size, shape, position or distance when transferring a curved surface to a flat surface such as a map. Projection/Projection Types Projection/Projection Types a representation of a curved 3-dimensional surface onto a flat 2-dimensional map. There are 3 major types of projections: cylindrical, conic, and planar.

Map Scale Map Scale ratio of a distance on the map to the corresponding distance on the ground

Parts of a Map (TODALS) Parts of a Map (TODALS) an acronym to used to remember the different parts of a map. Title, Orientation (compass), Date, Author, Legend (what symbols on the map mean) Scale ratio of distance used on the map.

Cartogram Map Cartogram Map a map in which the shape or size is distorted in order to demonstrate a variable such as travel, population or economic production. Choropleth Map Choropleth Map shaded or patterned map used to visualize how a measurement varies across a geographic area.Thematic Map Thematic Map shows information relating to a specific theme, such as the spread of a religion, trade routes, or the industrial growth of a nation. Political Map Political Map shows the major boundaries between countries or states. Physical Map Physical Map shows the major physical features of an area, such as its rivers, mountains, vegetation and elevation.MapMapa two-dimensional graphic representation of selected parts of the earths surface.GeographyGeography the study of the Earth's surface and its various climates, countries, peoples, and natural resources. Grid System Grid System allows the location of a point on a map to be described in a way that is universally understood. It typically includes coordinates and is often rectangular or square shaped.LatitudeLatitudethe distance in degrees on the earths surface north or south of the equator. The equator is 0 degrees. LongitudeLongitudethe distance in degrees on the earths surface east and west of the prime meridian.