Chapter 3

Front 1

Weather

Back 1

is the condiction of the atmosphere in one place during a limited period of time

Front 2

climate

Back 2

is the term of the weather patterns that an area typically ecperiances

Front 3

axis

Back 3

an imaginary line that runes from the north pole to the south pole

Front 4

temperature

Back 4

the measurement of how hot or cold a place is

Front 5

revolution

Back 5

trip around the sun

Front 6

equinox

Back 6

meaning equal night becuase daylight and nighttime hours are equal

Front 7

tropic of cancer

Back 7

at 231/2 N the northernmost point on the earth to recieve the direct rays of the sun

Front 8

solstice

Back 8

marks the begging of summer in the northern hemisphere

Front 9

tropic of capicorn

Back 9

eventually the sun reaches the sothernmost point at about the 22 of december

Front 10

greenhouse effect

Back 10

the trapping of heat in the atmosphere, and without the greenhouse effect the earth would be to cold for life

Front 11

Global warming

Back 11

is beileved to be caused in part by human activities such as burning coal, oil, and natural gases

Front 12

low latitude

Back 12

this zone includes the Tropic of Capricorn the equator and the tropic of cancer, between 30 degrees south and 30 degrees north

Front 13

high latitudes

Back 13

the earth polar areas, from 60 degrees N and 60 degrees S to 90 degrees N,S when the sun is facing this reagion the sun is directy shining on these areas

Front 14

artic circle

Back 14

experiences countinious daylight or twilight

Front 15

antarctic circle

Back 15

experiences countinous daylght or twilight for the other six moutnhs of the year

Front 16

midlatitudes

Back 16

the most variable weather on earth is found here

Front 17

prevailing winds

Back 17

winds tha plow in pretty constent patterns, to the north part of the globe they blow east in between the north and middle they blow west and in tyhe middle they blow east and in the south same as north

Front 18

coriolis effect

Back 18

cuases previling winds to blow diagonally rather than along strict north east west directions

Front 19

doldrums

Back 19

two other narrow bands of calm ir encircel the globe justnorth of the tropic of cancer and just south of the tropic of Capricorn

Front 20

currents

Back 20

move trough the ocean, just as winds move cold and warm water move as well

Front 21

El Nino

Back 21

a periodic change in currents water temp and weather

Front 22

windward

Back 22

side to side of the mountain range facing the wind

Front 23

leeward

Back 23

oposite side of the mountain

Front 24

rain shadow

Back 24

the hot dry air produces little precepitation in a effect known as rain shadow

Front 25

natural vegetation

Back 25

the orginal plant life growing in an area

Front 26

tropics

Back 26

found in or near the low latitudes

Front 27

sahara

Back 27

alone extends ove almost the entire northern onethird of the african continent

Front 28

oasis

Back 28

an area of lush vegeation

Front 29

conuferous

Back 29

tres most of which are evergreens , have cones

Front 30

deciduous

Back 30

most of which have broad leaves change color and drop ther leave in Auttum

Front 31

Mixed Forest

Back 31

with both kinds of trees

Front 32

prairies

Back 32

or inland grass lands

Front 33

premafrost

Back 33

breif summer growing period may support needled evergreens

Front 34

hypothesis

Back 34

or scientific explanation for these ice ages is that the earth absorbed less solar energy because of variations in earths orbit

Front 35

smog

Back 35

avisable chemical haze on the atmosphere the endagers people health