| Definition | Term |
|---|
| a vent in the earth's crust through which lava, steam, and ashes are expelled | |
| an area of land completely surrounded by water | |
| an arid area with little or no vegetation | |
| a narrow waterway connecting two bodies of water | |
| a huge mass of moving ice | |
| a group of many islands | |
| an elevated area of land with a pointed or rounded top, higher than a hill | |
| a low wetland that supports grass and trees | |
| a body of water with land on all sides | |
| a fertile place in a desert where there is some water and vegetation | |
| a piece of land surrounded by water on three sides | |
| a lowland between two hills | |
| a large body of water extending into a land mass | |
| | Definition | Term |
|---|
| land formed by sediment deposited at the end of a river | |
| beginning of a river | |
| end of a river or place where the river deposits its water | |
| stream which deposits into a river | |
| a large high level area that is raised above the surrounding land | |
| cliff or sheer drop over which water cascades | |
| a ring shaped coral reef | |
| an area of water seperated by the sea by low sandy dunes | |
| a deep valley with steep sides caused by passage of a river over many years | |
| land along the edge of an ocean, sea, or other body of water | |
| an expanse of sand along a shore | |
| an isolated hill with steep, often vertical, sides and a relatively flat top | |
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U.S. States 
Countries of Africa 
Countries of Asia
