US Regions and States — Answer Key
Part A: Fill in the Blank
Write the missing word or number on each line.
1. The Rio Grande River forms part of the border between the United States and Mexico.
The Rio Grande flows from Colorado to the Gulf of Mexico, forming the natural border between Texas and Mexico for about 1,250 miles.
2. Yellowstone National Park is located mostly in the state of Wyoming.
About 96% of Yellowstone National Park is in Wyoming, with small parts extending into Montana and Idaho. It was the world's first national park.
3. The Statue of Liberty is a famous landmark in the Northeast region.
The Statue of Liberty stands on Liberty Island in New York Harbor and has welcomed immigrants arriving in the Northeast since 1886.
4. The Mississippi River empties into the Gulf of Mexico.
The Mississippi River ends its 2,300-mile journey by flowing into the Gulf of Mexico near New Orleans, Louisiana.
5. Mount Rainier is an active volcano in the state of Washington.
Mount Rainier is an active volcano near Seattle, Washington, standing at 14,411 feet. It is the tallest peak in the Cascade Range.
6. The Everglades are a large wetland area in the state of Florida.
The Everglades stretch across southern Florida and are a unique wetland ecosystem home to alligators, manatees, and hundreds of bird species.
7. The Grand Canyon was carved by the Colorado River over millions of years.
The Colorado River slowly wore away rock over millions of years to carve the Grand Canyon in Arizona, which is over a mile deep in some places.
8. Lake Superior is the largest of the five Great Lakes by surface area.
Lake Superior covers about 31,700 square miles, making it the biggest Great Lake and the largest freshwater lake by surface area in the world.
9. The Ohio River flows through several Midwest states before joining the Mississippi.
The Ohio River passes through Midwest states like Ohio, Indiana, and Illinois before meeting the Mississippi River at the southern tip of Illinois.
Part B: Matching
Match each item on the left to the correct answer on the right.
1. Match each landmark to the state where it is found.
Mount Rushmore
→ South Dakota
New York
Niagara Falls
→ New York
Texas
Space Needle
→ Washington
South Dakota
Alamo
→ Texas
Washington
Correct matches: Mount Rushmore → South Dakota; Niagara Falls → New York; Space Needle → Washington; Alamo → Texas.