a large area of water surrounded by land and not connected to the sea.
lake
an area of water smaller than a lake, often artificially made.
pond
an area of land that is higher than the surrounding land.
hill
the salty water that covers a large part of the surface of the earth.
sea
a mountain with a large, circular hole at the top through which lava (= hot liquid rock) gases, steam, and dust are or have been forced out.
volcano
a natural wide flow of fresh water across the land into the sea.
river
a raised part of the earth's surface, much larger than a hill.
mountain
an area, often covered with sand or rocks, where there is very little rain.
desert
water, especially from a river or stream, dropping from a higher to a lower point, sometimes from a great height.
waterfall
an area of sand or small stones near the sea.
beach
an area of very wet, soft land.
swamp
an area of low land between hills or mountains, often with a river running through it.
Valley
a large hole in the side of a hill, cliff, or mountain, or one that is underground.
Cave
a route or track between one place and another, or the direction in which something is moving.
Path
