Social Studies Oct 9

Front 1

An arc-shaped chain of islands.

Back 1

archipelago

Front 2

A dried stream that runs down mountains and when they’re filled, carry deposits of sand, rock, and gravel to the bottom of the mountain.

Back 2

arrovo

Front 3

A ring-shaped island formed by coral buildup on the rim of the underwater volcano.

Back 3

atoll

Front 4

A barren area with eroded ridges, peaks, and mesas, and sparse vegetation.

Back 4

band lands

Front 5

Ground which slopes to the water’s edge on a stream, lake, and river.

Back 5

bank

Front 6

A body of water partially enclosed by land with a wide outlet to the ocean.

Back 6

bay

Front 7

A sandy, pebbly, or rocky shore of a body of water.

Back 7

beach

Front 8

A tall, isolated rocky hill or mountain with a flat top and steep sides, which is smaller than a mesa.

Back 8

butte

Front 9

An artificial (man-made) waterway used for irrigation or travel.

Back 9

canal

Front 10

A deep valley with high, steep walls

Back 10

canyon

Front 11

A pointed piece of land jutting into the sea from the coastline of a continent or large island.

Back 11

cape

Front 12

The deepest part of a river harbor.

Back 12

channel

Front 13

An underground hollow with an opening at the surface.

Back 13

cave

Front 14

A steep, high face of rock.

Back 14

cliff

Front 15

A flat area of land along the coastline of a large body of water.

Back 15

coastal plain

Front 16

The line that forms the boundary between land and ocean or lake

Back 16

coastline

Front 17

The line that forms the boundary between land and ocean or lake

Back 17

continent

Front 18

A mound or ridge of coral polyps and their hard limestone remains, combined with sand and minerals.

Back 18

coral reef

Front 19

A bowl-shaped depression in the earth or a funnel-shaped opening of a volcano.

Back 19

crater

Front 20

A triangular plain formed by the gravel, silt, sand, and clay deposited at the river’s mouth where it slows to meet another body of water.

Back 20

delta

Front 21

A dry, barren region that receives little or no precipitation.

Back 21

desert

Front 22

A region that suffered a drought or a dust storm.

Back 22

dust bowl

Front 23

A long, narrow coastal valley between tall, rocky cliffs, gouged out by a glacier and flooded by the sea.

Back 23

fjord

Front 24

A large area thickly covered with trees.

Back 24

forest

Front 25

Land that gets flooded often. A plain build up or in the process of being built up by a stream deposition.

Back 25

flood plains

Front 26

A narrow valley or gorge cut by a stream.
Water ___ - if the stream still occupies the gap.
Wind ____ - if the stream is gone.

Back 26

gap

Front 27

A natural hot spring that intermittently ejects steam and hot water into the air.

Back 27

geyser

Front 28

A large body of ice that moves across the earth’s surface.

Back 28

glacier

Front 29

An area of a sea or ocean partially enclosed by land; larger than a bay.

Back 29

gulf

Front 30

A natural land elevation smaller than a mountain.

Back 30

hill

Front 31

A mass of floating ice that has broken away from a glacier.

Back 31

iceberg

Front 32

The interior part of a land mass.

Back 32

inland

Front 33

1. A ditch or watercourse
2. An embankment made to prevent flooding

Back 33

dike

Front 34

A piece of land, smaller than a continent, completely surrounded by water.

Back 34

island

Front 35

A narrow strip of land between two seas or oceans that connects two larger land areas.

Back 35

isthmus

Front 36

Land covered by dense tropical vegetation.

Back 36

jungle

Front 37

A shallow pool of water at the center of an atoll.

Back 37

lagoon

Front 38

A large inland body of fresh or saltwater.

Back 38

lake

Front 39

The bank of a river which has been built up by the deposition of silt when the water in the river overflows.

Back 39

levee

Front 40

A wetlands area always or sometimes covered with shallow water whose main type of plants are soft-stemmed reeds, rushes, sedges, and grasses.

Back 40

marsh

Front 41

Flattop, elevated landform. Larger than a butte, but smaller than a plateau.

Back 41

mesa

Front 42

Underwater mountains.

Back 42

mid oceanic ridge

Front 43

A ragged mass of rock that rises above the surrounding landscape with steep slopes and a peak or summit.

Back 43

mountain

Front 44

A series of mountains or mountain ridges closely related in position and direction.

Back 44

mountain range

Front 45

The place where a river enters the ocean.

Back 45

mouth of the river

Front 46

One of the largest bodies of salt water on the earth.

Back 46

ocean

Front 47

A narrow projection of a larger territory, as in Florida, Texas, and Oklahoma.

Back 47

pan handle

Front 48

A landform surrounded by water on three sides.

Back 48

peninsula

Front 49

Means “at the foot of a mountain.” The name applies to that region which extends along the foot of a rnage of hills or mountains.

Back 49

piedmont

Front 50

A high, flat landform with steep sides. Larger than a mesa.

Back 50

plateau

Front 51

A wide area of level or rolling, wet, tall grassland.

Back 51

prairie

Front 52

A dense tropical evergreen forest with an annual rainfall of at least 100 inches.

Back 52

rainforest

Front 53

A stream of water of considerable volume.

Back 53

river

Front 54

A ridge or hill of sand blown or drifted by the wind in deserts or on beaches.

Back 54

sand dune

Front 55

An open grassland with widely spaced trees in a hot, seasonally dry climate.

Back 55

savanna

Front 56

A body of saltwater surrounded almost entirely by land.

Back 56

sea

Front 57

The starting point at the sea used to measure the height of land.

Back 57

sea level

Front 58

A relatively narrow waterway joining two larger bodies of water.

Back 58

strait

Front 59

The place where a river begins.

Back 59

source of the river

Front 60

A long, relatively wide body of water larger than a channel or strait, that often connects larger bodies of water.

Back 60

sound

Front 61

A dry, often treeless area covered chiefly by short grasses.

Back 61

steppe

Front 62

A narrow strip of water extending into a body of land.

Back 62

inlet

Front 63

A mountain peak or the top of a hill.

Back 63

summit

Front 64

A lowland region saturated by water.

Back 64

swamp

Front 65

A boundary line on a mountain between where it is too cold for trees to grow, and where trees are plentiful.

Back 65

timberline

Front 66

A small river which runs into a larger river.

Back 66

tributary

Front 67

Vast treeless plains with permafrost and small, low plants.

Back 67

tundra

Front 68

An elongated lowland between mountain ranges or hills, often has a river or stream running along the bottom.

Back 68

valley

Front 69

An opening in the earth’s surface through which lava, ash, hot gasses, and rock fragment erupts.

Back 69

volcano

Front 70

A natural stream of water descending from a steep height.

Back 70

waterfalls

Front 71

A narrow cleft with steep rocky walls, especially one through which a stream runs; a small canyon.

Back 71

gorge