an area of sand, next to the sea or a lake
beach
a place where a stream or river falls from a high place
waterfall
a large area of land that has very little water and very few plants growing on it.
desert
a large area of land that is thickly covered with trees
forest
an area of land that is higher than the land around it, but not as high as a mountain
hill
a piece of land that is completely surrounded by water
island
an area of tropical forest where trees and plants grow very thickly
jungle
a large area of water that is surrounded by land
lake
an area of low land between hills or mountains, often with a river flowing through it
valley
a very high hill, often with rocks near the top
mountain
the mass of salt water that covers most of the earth’s surface
ocean
a natural flow of water that continues in a long line across land to the sea
river
a large hole in the side of a hill or cliff or under the ground
cave
a mountain with a large opening at the top through which gases and lava (= hot liquid rock) are forced out into the air, or have been in the past
volcano
