US Geography and Regions — Answer Key
Part A: Multiple Choice
Circle the best answer for each question.
1. Which statement about the Great Lakes is true?
A) They are all located entirely within the United States.
B) Lake Superior is the largest Great Lake by surface area.
C) The Great Lakes border the Southwest region.
D) There are six Great Lakes in total.
Lake Superior is not just the biggest Great Lake by surface area — it is also the largest freshwater lake in the world by area. The other choices are wrong because the Great Lakes touch Canada (so not all in the US), they border the Midwest and Northeast (not Southwest), and there are five lakes, not six.
2. A student says the Rocky Mountains are in the Southeast region. What is wrong with this statement?
A) The Rocky Mountains are in the Northeast region.
B) The Rocky Mountains are in the Midwest region.
C) The Rocky Mountains are in the West region.
D) There are no mountains called the Rocky Mountains.
The Rocky Mountains run through states like Colorado, Wyoming, and Montana, all of which are part of the West region. They are not in the Southeast, Northeast, or Midwest, and they are very real.
3. Which river flows through the Midwest and is a major tributary of the Mississippi River?
A) Colorado River
B) Columbia River
C) Ohio River
D) Rio Grande
The Ohio River flows through Midwest states like Ohio, Indiana, and Kentucky before joining the Mississippi River near Illinois. The Colorado and Columbia rivers are out west, and the Rio Grande forms the southern border with Mexico.
4. Which pair correctly matches a landform with its description?
A) Plain: a high area with steep sides
B) Valley: a flat area with no trees
C) Mountain: a low area between hills
D) Plateau: a raised flat area with steep sides
A plateau really is a raised flat area of land with steep sides, like a high tabletop. The other choices mix up the landforms — plains are flat and low, valleys sit between hills, and mountains rise up tall and pointed.
Part B: Fill in the Blank
Write the correct answer on each line.
1. The Colorado River is one of the longest rivers in the western United States.
Beginning high in the Rocky Mountains and flowing southwest through Utah and Arizona, the Colorado River is one of the longest and most important rivers in the western United States.
2. Alaska is the largest state in the United States by land area.
Even though Texas is huge, Alaska is even bigger — it has the most land area of any state, with vast wilderness, mountains, and tundra.
3. The Midwest region is sometimes called the breadbasket of America because of its many farms.
Because the Midwest produces so much wheat, corn, and other grains used to make bread, people often nickname this region the breadbasket of America.
4. The Appalachian Mountains are older and shorter than the Rocky Mountains.
The Appalachian Mountains have been worn down by wind and water for hundreds of millions of years, making them older and shorter than the younger, taller Rocky Mountains in the West.
5. The border between the United States and Canada runs through four of the Great Lakes.
The border between the United States and Canada cuts right through Lakes Superior, Huron, Erie, and Ontario — only Lake Michigan sits entirely inside the United States.