1. To Next Slide Unit 5 Chapter 12 Lesson 2 People and Mountains 20 Questions!

2. To Next Slide What areas did Lewis and Clark explore? The Louisiana Territory, the Rocky Mountains, and the lands west of the Rockies.

3. To Next Slide Something that blocks the way or makes it hard to move from place to place. barrier

4. To Next Slide Transcontinental railroad A railroad that would cross the continent and link the East and West.

5. To Next Slide Work Labor

6. To Next Slide Why were mountains once barriers to travel? They made travel slow and dangerous.

7. To Next Slide An object that orbits the Earth. Satellite

8. To Next Slide Why are there few large cities in mountain regions? Steep mountain slopes are not well suited for building large cities.

9. To Next Slide A table that gives the number of miles between cities. Mileage table

10. To Next Slide Thats All! Keep Sharp Minds!