1. Population

8. Everything we do effects the earth!

9. World Population

10. Population The total number of people in a given area.

11. Population’s influence Variety of businesses Transportation Number of schools Government services Population patterns tell us A LOT about our world!

12. Population Density http://www.youtube.com/watch?v= s9dFy6xBOBM

13. Impact Video 1 1. How does India’s high population density affect life in its cities?

14. Population Density A measure of the number of people living in an area.

15. Population Density Measured by square mile Found by dividing population by the area The higher the number; the more crowded

16. Japan: 873 Australia: 7

18. Where are some areas people do not live at?

20. Where are some areas people do live at?

22. Birthrate The annual number of births per 1,000 people.

23. Population Changes 3 key factors –Birthrate –Death rate –Natural increase

24. Migration The movement of people from one place to another.

25. Immigration –Coming INTO a country Emmigration –EXITING a country

26. Impact Video 2 Why did so many people leave their home countries to start a new life in America?

27. Impact Video 3 What are at least 2 reasons that millions of Mexicans have crossed the border to live and work in the United States?

28. Push Pull Theory