Chapter 2 World Geography

Front 1

the watery areas of earth

Back 1

hydrosphere

Front 2

the earth's crust

Back 2

lithosphere

Front 3

the air we breath

Back 3

atmosphere

Front 4

part of the earth that supports life

Back 4

biosphere

Front 5

underwater extension of the coastal plain

Back 5

continental shelf

Front 6

solid hot center of the earth

Back 6

core

Front 7

outer core of hot thick dense rock

Back 7

mantle

Front 8

the outer layer,a rocky shell that forms the earth's surface

Back 8

crust

Front 9

the theory that continents were oncce joined and then slowly drifted apart

Back 9

continental drift

Front 10

all of the physical processess that creates many of the earth's physical features

Back 10

plate tectonics

Front 11

molten rock

Back 11

magma

Front 12

a process by which mountains can form as sea plates dive beneath continental plates

Back 12

subduction

Front 13

pieces of earth's crust cpme together slowly as the sea plate slides under the continental plate

Back 13

accretion

Front 14

when sea plates pull apart

Back 14

spreading

Front 15

bends in layers of rock

Back 15

fold

Front 16

when plates may grind or slide past each other creating cracks in earth's crust

Back 16

fault

Front 17

when folded land can't be bent any further

Back 17

faulting

Front 18

breaks down rocks

Back 18

weathering

Front 19

wears away the earth's surface

Back 19

erosion

Front 20

large bodies of ice

Back 20

glaciers

Front 21

when gaciers melt they leave behind large piles of rock and debris

Back 21

moraine

Front 22

regular movement of water from ocean to air to ground and back to the ocean

Back 22

water cycle

Front 23

changing of liquid water to vapor or gas

Back 23

evaporation

Front 24

when vapor changes to liquid water

Back 24

condensation

Front 25

rain,sleet,snow, or hail

Back 25

precipitation

Front 26

turning ocean water into fresh water by removing the salt

Back 26

desalination

Front 27

fresh water that lies beneath the earth's surface

Back 27

groundwater

Front 28

an underground porous rock layer often saturated by very slow flows of water

Back 28

aquifer

Front 29

small,irregular shaped planet like objects

Back 29

asteroids

Front 30

icy dust particles and frozen gases

Back 30

comets

Front 31

space debris or chunks of iron and rock

Back 31

meteoroids

Front 32

three types of planets

Back 32

dwarf, terrestrial, gas giant