Mapping Earth's Surface

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34 terms

Topography

The shape of the land determined by elevation, relief, and landforms.

Elevation

Height above sea level.

Relief

The difference in elevation between the highest and lowest parts of an area

Landforms

A feature of topography formed by the process by shaping earth's surface.

Landform region

A large area of land t=where the topographer is similar

Plain

A landform made up of flat or gently rolling hills with low relief.

Mountain

A landform with high elevation and high relief.

Mountain range

A sires of mountains that have the same general shape and structure.

Plateau

A landform that has more or less level and has high elevation above sea level.

Lithosphere

A rigid layer made up of the uppermost layer of the mantle and crust.

Core

The dense center made up of the solid inner core and the molten outer core.

Mantle

A layer of hot solid material between the crust and core.

Crust

A layer of rock that forms earth's outer surface.

Rock

The material that forms earth's solid surface

Geology

Study of the earth

Map

A model of all or part of earth's surface.

Globe

A sphere that represents earth's outer surface.

Scale

Used to compare distance on a map to the distance on earth's surface.

Symbols

Pictures used by mapmakers to stand for features on the earth

Key

A list of symbols used on a map.

Equator

an imaginary line half way between the North and South poles.

Hemisphere

One half of a sphere that makes up earth's surface.

Prime Meridian

A line that makes a half circle from the north to the south pole.

Degree

A unit used to measure distance around the world.

Latitude

distance north or south to the equator.

Longitude

distance east to west from the Prime Meridian

Map Projection

A framework of limes that helps show landmass on a flat surface.

satellite Image

Pictures of the land based on computer data from satellites.

Pixel

Tiny dots on a satellite image

Digitizing

Converting information to numbers for the use of computers

Topographic Map

A map that shows surface features of an area.

Contour Line

A line on a map that connects points of equal elevation.

Contour Interval

The difference in elevation to one contour line to the next.

GPS (Global Positioning System)

A method of finding latitude and longitude using satellites.

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