The Americas
This range effectively separates the western United States from the eastern 2/3 of the country.
The Rocky Mountains
The largest desert in the world, this physical feature encompasses the vast majority of land in North Africa.
Sahara Desert
This mountain range creates a border between Spain and France, and contains within it the tiny micro-state of Andorra.
The Pyrenees
This is the coldest climate, with extremely cold winters, and summer temperatures that never exceed 50 degrees Fahrenheit.
Polar
This term is defined as the average weather conditions in a place over a long period of time.
climate
This range extends from Georgia to Maine, and is the largest in the eastern United States.
The Appalachian Mountains
Surrounding the second longest river in the world, this valley or basin extends from near Lake Victoria in Uganda to the Mediterranean Sea, north of Egypt.
Nile River Basin/Valley
The largest range in Europe, these mountains run through parts of France, Monaco, Italy, Switzerland, Liechtenstein, Germany, Austria and Slovenia.
The Alps
This is the name for a landform with an elevated plain and a flat surface.
plateau
This range separates the European part of Russia, to the west, from the part of Russia that is in Asia.
The Ural Mountains
These mountains cover the majority of South America's western coast.
The Andes
Caused by shifting tectonic plates below, this African physical feature creates a dramatic, visible depression in the earth's surface that extends for nearly 4,000 miles.
Great Rift Valley
The source of the world's first civilization, these two rivers run through modern-day Iraq, Syria, and Turkey.
Tigris and Euphrates
This climate type is characterized by humid and hot or warm temperatures year-round, coupled with typically more than 60 inches of rainfall each year.
Tropical
Named for the second longest river in North America, this watershed includes nearly half the land in the United States, and is vital for transport of goods, irrigation, drinking water, and electricity.
Mississippi River System
Surrounding the largest river in the world, this physical feature covers roughly 40% of the continent of South America.
Amazon Basin
The largest in Asia, this high elevation desert makes up approximately 500,000 square miles of land in Northern China and Southern Mongolia.
Gobi Desert
At over 96,000 square miles, 615 miles long, and between 35 and 200 miles wide, this body of water is bordered by Iran, Iraq, Kuwait, Bahrain, Qatar, Saudi Arabia, and the United Arab Emirates.
Persian Gulf
This is a low area of land surrounded by hills or mountains with fertile soil, good for farming, that typically has a river or rivers flowing through it.
Valley
These two rivers were the reason for the development as China as one of the world's early civilizations.
Yangtzee and Huang He (Yellow) Rivers
The driest, non-polar desert on earth, this desert is located is parts of Chile, Argentina, Bolivia, and Peru, and is bordered by the Andes Mountains.
Atacama Desert
At a length of just over 1,500 miles, this river begins in the Himalayas and travels through northern India and Pakistan before emptying into the Bay of Bengal.
Ganges River
The second longest river in Europe, this river originates in Germany, and also borders or flows through Austria, Slovakia, Hungary, Croatia, Serbia, Bulgaria, Ukraine, Moldova and Romania before ending in the Black Sea.
The Danube
This is the name for a body of water with land on three sides of it.
Bay
The largest of it's kind at over 130,000 square miles, this spans 1,400 miles from north to south off Australia’s east coast, and has diversity and abundance much like the rain forests of the Congo River Basin and Amazon Basin, except under the ocean.
Great Barrier Reef