a tropical forest in which trees and plants grow very closely together
jungle
a low area of land between mountains or hills, usually with a river flowing through it
valley
an area in a garden or park where flowers are grown
flowerbed
a mountain that forces hot gas, rocks, ash, and lava
volcano
a small narrow river
stream
a sudden shaking movement of the ground
earthquake
an area of land that is higher than the land surrounding it but smaller and lower than a mountain
hill
small, hard balls of ice that fall from the sky like rain
hail
a small stream sheltered by trees
creek
an area of water similar to a lake but smaller, especially one that has been built artificially
pond
a long period of time when there is little or no rain
drought
a raised part of the earth's surface, much larger than a hill, the top of which might be covered in snow
mountain
one of the large areas of salt water that cover most of the Earth
ocean
a flash of bright light in the sky that is produced by electricity moving between clouds or from clouds to the ground
lightning
a severe snow storm with strong winds
blizzard
a thick layer of ice and snow, that covers fewer than 50,000 square kilometers
ice cap
a natural wide flow of fresh water across the land into the sea
river
a large area of land with few plants and little water and where the weather is always dry
desert
the sudden loud noise that comes from the sky especially during a storm
thunder
a thick cloud that forms close to the ground or to water and is difficult to see through
fog
to rain in a very light way
to drizzle
a long line of rock or coral in the sea, with its top just below or just above the surface
reef
a forest in a tropical area that receives a lot of rain
rainforest
the substance on the surface of the Earth in which plants grow
soil
a large area of water that is surrounded by land
lake
the shape of the land next to the sea, especially when seen from the air or as shown on a map
coastline
an extended mass of ice formed from snow falling and accumulating over the years and moving very slowly
glacier
a place where water flows over the edge of a cliff, rock, or other steep place onto another level below
waterfall
very soft wet earth
mud
a large hole in the side of a hill or under the ground
cave
a large, flat area of land covered with grass, usually with few trees, that is found in hot countries, especially in Africa
savannah
an area of land, used for growing crops or keeping animals, usually surrounded by a fence
field
a piece of land that is completely surrounded by water
island
a place where water naturally flows out from the ground
a spring
a curved line of colours that appears in the sky when the sun shines while it is raining
rainbow