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72 Cards in this Set

  • Front
  • Back

cardinal directions

Absolute direction

Object directions

Relative direction

Places change in their similarity and differences through time

Geography Dynamics


The geographers tool

Maps

the study of making maps

cartography

investigations to determine and accurately depict boundaries, coast lines, and landforms

surveys

set of imaginary lines that intersect at right angles to form a system of reference for locatiog points on the surface of earth

geographic grid

Points of reference

1. equator


2. n and s poles


3.prime meridian


angular distance n or s of the equator

latitude

angular distance e or w of prime meridian

longitude

time zones

360 of longitude


24 hrs in 1 day


avg 15 of longitude

designates the way the curved surface of the earth is represented on a flat surface

map projection

globe properties

area


shape


distance


direction

maps that show correct areal relationships

equal area projections

maps that tend to preserve the shape of land masses or areas

conformal projections

these maps preserve true distance in all directions, but only from one central point or two central points

equidistant projections

maps that preserve direction from a central point on a particular map

azimuthal projections

blending and compromising between the four properties to find a maps which represents the surface of the earth well

compromise projection

the ratio between the measurement of something on the map and the corresponding measurement on the earth

scale

large scale

small area great detail


small scale

large area little detail

depict shape and elevation of terrain

topographic

line showing equal elevation

contour line

where a dot represents some form of data

dot density map

shows how the amount of a phenomenon varies from one are to another area

choropeth maps

used to portray linear movement between places

flow line maps

used in many elementary schools during the 20th century

Mercator projection

GIS

geographic info science

a computer based set of procedures for assembling, storing, manipulating, analyzing, and displaying info.

GIS

data that includes some for of geographic info

geographically referenced info

a digital record of geographic info from sources

geographic databases

GIS products

maps


printed maps


data tables


Users of GIS

police


ecologists


planners and land developers


retailers

what geographers use to consider future trends and behavior

models

detecting the nature of an object and the content of an area without direct contact with the ground

remote sensing

record longwave radiation emitted by landforms, water bodies, and buildings to produce images of thermal radiation

thermal scanning

radio detecting and ranging

radar

good for monitoring heat and movement

radar

light detection and ranging

lidar

devices that use info from a set of 24 satellites to assess exact geographic locations

global positioning system(GPS)

large sections of the earths surface are characterized by similar geologic features

landforms

formed by the cooling of molten rock from earths interior

igneous

hardened lava often from a volcano

igneous(extrusive)

harden below ground and cool slower

igneous(intrusive)

composed of hardened particles of gravel, sand, silt, and clay

sedimentary

ex of sedimentary rocks

sandstone


limestone


shale

ex of ig(ex)

basalt


andesite


obsidian

ex of ig(In)

granite


gabbro


altered igneous or sedimentary rocks that have been under intense heat or pressure

metamorphic


compression, tension, folding

metamorphisis

a break or fracture in rock where movement has happened

fault

the earths surface is comprised on a collection of plates that move in different directions

plate tectonics

a single landmass, known as Pangaea broke apart and the continents have moved very slowly away from each other based on plate dynamics

continental drift

certain plates are moving in different directions

plate movement

Partial melting of descending plate and upper mantle

subduction zones

great African rift valley

spreading

trenches and mountain building

ocean activity

when plates move over an area of regular magma upwelling

hot spots

magma determines the "violence" or explosiveness of a volcanic eruption.

Volcanic eruptions

mild eruptions

basaltic lavas

explosive eruptions

andesitic lavas

Lava flows

basaltic lavas


pahoehoe lava


aalava


basaltic lavas

exhibit fluid behavior

Pahoehoe lava

resembles twisted or ropey texture

Aalava

rough, jagged rocky texture

very explosive and ashy

andesitic volcanoes

the downslope movement of rock and soil under the direct influence of gravity

mass wasting

controls and triggers of mass wasting

water


slope angle


the movement of the earth along a geologic fault or another point of weakness of or near the surface

earthquake

earthquake magnitude is determined using the

richter scale

the result of processes that loosen, dissolve, wear away, and remove earth and rock material

erosion

types of erosion

running water ( grand canyon)


heavy rain(gullying)


ground water (sinkholes) (erodes limestone)


continental glaciers (moraines)


alpine glaciers (freezing&thawing of ice)


waves&coastal erosion (beach nourishment)


wind (dunes) (sand&dirt particles)