Dry, flat grasslands that are on a high plateau
lowland area that borders the Atlantic Ocean
a place where ships can dock to transfer goods
What is "erosion"?
Site of one of the most important battles of the Civil War
Where is "Gettysburg, PA"?
An imaginary line that determines the direction rivers flow
What is the "Continental Divide"?
The body of water surrounded by land on three sides is sometimes called "America's Sea."
What is' The Gulf of Mexico" or "Gulf of America"?
a large area of high, flat land
a human-made waterway used to carry ships or irrigate crops
The place of our nation's capital
Where is "Washington, D.C."?
The younger, steep mountain range was a barrier to westward expansion (West Coast).
What are the "Rocky Mountains"?
ocean on the East Coast?
What is the "Atlantic Ocean"?
a person who is among the first to settle in an unsettled area
What is a "pioneer"?
What is "agriculture"?
The meeting place of the Continental Congress & the Constitutional Convention
Where is "Philadelphia, PA"?
A river flowing through the center of the United States, emptying into the Gulf of Mexico
What is the "Mississippi River"?
mountain range extending from Eastern Canada to Western Alabama
What are the "Appalachian Mountains"?
a river or stream that flows into a larger river or lake
What is a "tributary"?
a physical feature that made travel, expansion, or migration more difficult
What is a "physical barrier"?
A constructed waterway that helped cities develop near the Great Lakes in 1825
What is the "Erie Canal"?
ocean on the West Coast
The area made up of rolling flatlands with many hills, broad river valleys, and grassy hills.
What are the "interior lowlands"?
a physical feature that made travel, expansion, or migration easier
What is a "physical gateway"?
the physical elevation and features of an area of land
Served as a British Military base until 1783--a major trade center for the U.S because of the Erie Canal
What is "New York City, New York"?