Houghton Mifflin Harcourt
Harcourt: School Publishers: Postcards From the Southwest
The Southwest region of the United States is filled with beautiful landscapes and marvelous cities. Use this site to see and learn about some of the wonders of the Southwest. You'll look at postcards from an imaginary trip. Then you can...
Khan Academy
Khan Academy: Introduction to China
Much of China, a country slightly larger than the continental United States, is hilly or mountainous. To its east lies the Pacific Ocean; to its south thick jungles. Mountains in the southwest connect in the west with the Himalayas,...