| Term | Definition |
|
volcano |
an opening in the Earth, usually raised, through which gasses and lava from the Earth's interior escape |
|
strait |
a narrow strip of water connecting two large bodies of water |
|
island |
a body of land surrounded by water |
|
flood plain |
flat land near the edge of rivers formed by mud and slit deposited by floods |
|
swamp |
an area of land that is partially covered by water |
|
cape |
a narrow, curved area of land extending into an ocean or lake |
|
sea level |
the level of the surface of the ocean |
|
bay |
part of an ocean or lake extending into the land |
|
harbor |
a sheltered area of water, a safe docking place for ships |
|
river mouth |
the place where a river flows into a lake or ocean |
|
delta |
a triangular area of land formed from deposits at the mouth of a river |
|
desert |
a dry area where few plants grow |
|
oasis |
a spot of fertile land in a desert, fed by water from wells or underground springs |
|
butte |
a raised, flat area of land with steep cliffs, smaller than a mesa |
|
prairie |
a large, level area of grassland with few or no trees |
|
steppe |
a wide, treeless plain |
|
mountain pass |
a gap between mountains |
|
glacier |
a large ice mass that moves slowly down a mountain or over land |
|
mesa |
a wide, flat-topped moutain with steep sides, larger than a butte |
|
valley |
low land between hills or mountains |
|
cataract |
a large, powerful waterfall |
|
canyon |
a narrow, deep valley with steep sides |
|
cliff |
the steep, almost vertical, edge of a hill or mountain, or plain |
|
plateau |
a broad, flat area of land higher than the surrounding land |