Landforms
Usually rounded elevation of land (lower than a mountain)
Hill
Mountain or hill with a vent through which lava escapes from the earth's crust.
Volcano
Low area of land between hills and mountains
Valley
Large body of water partially enclosed by land
Sea
A cascade of water falling from a height
Waterfall
Very top of a mountain ending in a point
Peak
High steep bank by a river or sea
Bluff
Fast flowing and agitated part of a river
Rapids
Small body of water
Pond
Small, narrow river.
Stream
Part of an ocean or sea extending into the land
Gulf
Man-made waterway constructed to allow the passage of boats or to carry water
Canal
Large underground chamber
Cave
Oasis
Large floating mass of ice
Long narrow bank of sand
Sandbar
Isthmus
Isolated flat-topped elevation that rises abruptly from the surrounding area
Mesa
Series of connected mountains
Range
Area of low wet land usually with lots of grasses
Marsh
Shallow body of water protected from the sea by sandbar or reefs
Lagoon
Spring that throws forth jets of hot water and steam
Geyser
Ridge of sand created by the wind
Sand Dune
Group of islands
Archipelago
Ring shaped reef formed from coral
Atoll