4. Write their names.

Here are the names: 1. The waterfall on the border of the USA and Canada - The Niagara Falls 2. The five big lakes on the border of the USA and Canada - The Great Lakes 3. The biggest river in the USA - The Mississippi River 4. The capital of the USA - Washington D.C. 5. The plains in the central part of the USA - The Great Plains 6. The chain of mountains in the west of the USA - The Rocky Mountains 7. The chain of mountains in the east of the USA - The Appalachian Mountains 8. The biggest state in the USA - Alaska