A land mass completely surrounded by water
island
Large inland body of relatively still water
lake
The southernmost circle where the Sun does not rise at the December solstice
The Arctic Circle
This rises from the earth's mantle to create landforms
magma
The most common gas in the earth's atmosphere
Nitrogen
A land mass connected to the mainland on only one side
peninsula
Long, narrow inlet with steep sides or cliffs, created by glacial activity
fjord
This causes the earth to have four seasons as it revolves around the sun
The tilt of the earth's axis
Water going from a liquid to a gas
evaporation
The gas needed by all plant life
carbon dioxide
A narrow piece of land connecting two larger areas
isthmus
A major body of salt water
ocean
The Earth's northernmost circle of latitude where the Sun can be seen directly overhead at the June solstice
The Tropic of Cancer
Water going from a gas to a liquid
condensation
The gas needed by all animal life
oxygen
Route through a mountain range
pass
The original point from which a river or stream flows
source
This circle divides the earth into Northern and Southern hemispheres
The equator
The process of wind or water removing soil or rock from one location on the Earth's crust and transporting it to another location where it is deposited.
Erosion
The second largest continent in the world
Africa
Highland consisting of flat terrain that is raised sharply above the surrounding area
plateau
A stream or river that flows into a larger stream, river, or a lake.
tributary
The Earth's southernmost circle of latitude where the Sun can be seen directly overhead at the December solstice
Tropic of Capricorn
This keeps northern Europe warmer than northern North America in the winter
The Gulf Stream
These lakes hold more than 20% of the world's surface fresh water
Great Lakes