1 An opening in the earth, usually raised, through which gasses and lava escape from the earth’s interior

a narrow channel connecting two bodies of water 2 a narrow channel connecting two bodies of water

A body of land surrounded by water 3 A body of land surrounded by water Circular shaped island made of coral

a lowland region that is saturated by water 4 Swamp a lowland region that is saturated by water

5 Flat land near the edges of rivers formed by mud and silt deposited by floods

A raised, flat area of land with steep cliffs, smaller than a mesa 6 A raised, flat area of land with steep cliffs, smaller than a mesa

A wide, flat-topped mountain with steep sides, larger than a butte 7 A wide, flat-topped mountain with steep sides, larger than a butte

A broad flat area of land higher than the surrounding land 8 A broad flat area of land higher than the surrounding land

The place where a river flows into a lake or an ocean 9 Rangitātā River New Zealand Mississippi River United States The place where a river flows into a lake or an ocean

A point of land extending into an ocean or lake 10 Atlantic Ocean A point of land extending into an ocean or lake

11 Level of the ocean’s surface, used as a reference point when measuring the height or depth of the earth’s surface

A sheltered area of water deep enough for docking ships 12 A sheltered area of water deep enough for docking ships

13 A spot of fertile land in a desert, fed by water from wells or underground springs

Part of an ocean or lake partially enclosed by land 14 Part of an ocean or lake partially enclosed by land

A large, level area of grassland 15 A large, level area of grassland with few or no trees

A wide, treeless, grassy plain 16 A wide, treeless, grassy plain

17 Natural elevation of the earth’s surface with steep sides and greater height than a hill

Low land between hills or mountains 18 Low land between hills or mountains

A large ice mass that moves slowly down a mountain or over land 19 A large ice mass that moves slowly down a mountain or over land

A triangular area of land formed from deposits at the mouth of a river 20 A triangular area of land formed from deposits at the mouth of a river Ganges River Niger Lena River

21 Soft, wet, low-lying, grassy land that serves as a transition between water and land

The steep, almost vertical, edge of a hill, mountain, or plain 22 The steep, almost vertical, edge of a hill, mountain, or plain Clovelly, Australia

A narrow, deep valley with steep sides 23 A narrow, deep valley with steep sides

24 A step-like series of waterfalls

volcanoes Shield volcanoes in Hawaii Mt. Fuji in Japan An opening in the earth, usually raised, through which gasses and lava escape from the earth’s interior Lava fountains Mauna Loa Volcano, Hawaii

Strait a narrow channel connecting two bodies of water Strait of Gibraltar

atoll island Circular shaped island made of coral A body of land surrounded by water St. Thomas, Virgin Islands Circular shaped island made of coral atoll Maldive Islands, Indian Ocean

swamp a lowland region that is saturated by water

flood plain Flat land near the edges of rivers formed by mud and silt deposited by floods Mississippi River Flood Plain

butte A raised, flat area of land with steep cliffs, smaller than a mesa Merrick Butte, Monument Valley, Arizona

mesa A wide, flat-topped mountain with steep sides, larger than a butte

plateau A broad flat area of land higher than the surrounding land Colorado Plateaus

(river) mouth The place where a river flows into a lake or an ocean Mouth of the Rangitātā River New Zealand Mouth of the Mississippi River United States The place where a river flows into a lake or an ocean

cape A point of land extending into an ocean or lake Atlantic Ocean Cape Cod Bay

Sea Level Level of the ocean’s surface, used as a reference point when measuring the height or depth of the earth’s surface

harbor A sheltered area of water deep enough for docking ships St. Thomas Harbor, Virgin Islands

oasis A spot of fertile land in a desert, fed by water from wells or underground springs

bay Part of an ocean or lake partially enclosed by land Chesapeake Bay, Virginia Part of an ocean or lake partially enclosed by land Hanauma Bay, Hawaii

A large, level area of grassland with few or no trees prairie A large, level area of grassland with few or no trees

Steppe A wide, treeless, grassy plain

mountain Rocky Mountains Great Smokey Mountains Natural elevation of the earth’s surface with steep sides and greater height than a hill Sawtooth Mountains, Idaho Mountains of Crete

Valley Sacred Valley, Peru Low land between hills or mountains

glacier A large ice mass that moves slowly down a mountain or over land

delta A triangular area of land formed from deposits at the mouth of a river Ganges River Delta Niger Delta Lena River Delta

Marsh Soft, wet, low-lying, grassy land that serves as a transition between water and land

Cliff Cliff at Clovelly, Australia The steep, almost vertical, edge of a hill, mountain, or plain Scottish Cliff

Grand Canyon West A narrow, deep valley with steep sides canyon

Cataract A step-like series of waterfalls

archipelago A group of islands