World Geography- Chapter 1: How Geographers Look at the World

globe

a scale model of the Earth

map

a symbolic representation of all or part of the planet

cartography

designing or making maps

map projection

a mathematical formula used to represent the curved surface of the Earth on the flat surface of a map

Planar projection

a map created by projecting an image of he Earth onto a plane

Cylindrical projection

a map of Earth created by projecting Earth's image onto a cylinder

Conic projection

a map of the Earth created by placing a cone over part of an Earth model

Interrupted Projection

a map of the Earth in which the Earth's surface appears cut along arbitrary lines, each section project separately

location

a specific place on the Earth

Grid System

pattern formed as the lines of latitude and longitude cross one another

Hemisphere

half of a sphere or globe

latitude

distance north or south from the equator measured in degrees

Equator

the parallel line of 0 degrees latitude from which other latitudes are calculated

longitude

distance measured by degrees or time east or west of the prime meridian

Prime Meridian

the meridian measured 0 degrees longitude from witch other longitudes are calculated

Absolute Location

the exact position of a place on Earth's surface

Northern Hemisphere

the half of the Earth that lies north of the Equator

Southern Hemisphere

the half of the Earth that lies south of the Equator

Eastern Hemisphere

the part of the Earth east of the Atlantic ocean including Europe, Asia, Australia, and Africa; 20�W and 160�E often considered its boundaries

Western Hemisphere

the half of the Earth compromising North and South America and surrounding waters; longitudes 20�W ans 160�E often considered its boundaries

key

lists and explains the symbols, colors, and lines used on the map; the key is also known as the legend

compass rose

indicates directions; north, south, east, west

cardinal directions

north, south, east, and west; usually indicated with arrows or the points of a star

intermediate directions

northeast, northwest, southeast, and southwest

scale bar

shows the relationship between map measurements and actual distances on Earth

scale

a consistent, proportional relationship between the measurements shown on the map and the measurements of Earth's surface

relative location

the location of one place in relationship to another

physical map

shows the shape of the Earth's physical features

topography

shape of the Earth's physical features

relief

the elevations or inequalities of a land surface

elevation

the height about the sea level

political map

shows the boundaries and locations of political units such as countries, states, counties, cities, and towns

human-made

determined by humans rather than by nature

site

refers to the specific location of a place, including its physical setting

situation

expression of relative location

place

particular space with physical and human meaning

region

areas with similar characteristics

formal regions

defined by human common characteristics

functional regions

a central place and the surrounding area linked to it

perceptual regions

defined by popular feelings and images rather than by objective data

ecosystem

a community of plants and animals that depend upon one another, and their surroundings for survival

movement

the act or process of changing place or position

human-environment interaction

the study of the interrelationship between people and their physical environment

geographic information systems (GIS)

computer tools that process and organize data and satellite images with other types of information gathered by geographers and other scientists