| A | B |
| Rocky Mountains | largest mountain range in North America |
| Old Faithful | predictable geyser that erupts every 91 minutes |
| Great Basin Desert | largest desert in the U.S. |
| basin | low, bowl-shaped landform that is lower than the land around it |
| Death Valley | hottest, driest, and lowest place in U.S. |
| plateau | high, flat landform that rises steeply |
| Great Salt Lake | shallow salty body of water; saltier than the ocean |
| Central Valley | America's Fruit and Salad Bowl |
| tundra | cold, flat, treeless land in northern Alaska |
| archipelago | chain of islands; Hawaii |
| silicon | valuable mineral that is used to make computer parts |
| geyser | hot spring that shoots boiling water and steam into the air |
| Monument Valley | located in Utah; has strangely shaped sandstone formations |
| Los Angeles | second largest city in U.S. |
| Iditarod | famous dogsled race that is 1,150 miles long |
| hula | traditional Hawaiian dance |
| Alaska | largest and coldest state |
| Grand Canyon | largest deep narrow valley with steep slides; made of layers of rock |
| Pacific Ocean | most important resource of the West |
| Trans-Alaska Pipeline | built to carry oil from near Arctic Ocean to the coast of Alaska |
| Idaho | state known for potatoes |
| Hawaii | state known for pineapples |
| Yellowstone | world's first national park with volcanoes, earthquakes and geysers |
| Mount McKinley | highest mountain in U.S. |