POPULATION AGE STRUCTURE



Name: __________________

Date: __________________

POPULATION AGE STRUCTURES

Directions – In this exercise you will practice reading age pyramids and describe how they can be used to predict future populations.

1. In the space by each term write the ages of people belonging to:

The prereproductive age group __________

The reproductive age group __________

The postreproductive age group __________

View the age pyramids below: Note that for these graphs the length of the bar represents the percent each group contributes to the total population.

[pic]

Reading Information from the Graphs:

2. What percent of the female population of Italy is between 20 and 24 years old? _________

3. What percent of the population of Kenya are men between the age of 70 and 74? _________

4. What percent of the U.S. population was born between 1955 and 1959? (Remember, this includes males and females) ____________

5. Which age group do you fall into? _______

6. What percent of the U.S. population is made up of your age group? ____________

Interpreting the Graphs

7. What are the birth years of people who belong to the "baby boom" generation in the United States? __________

8. Briefly describe why this "boom" occurred.

9. Looking at the United States’ pyramid, describe the shape of the figure during the boom time. Why is it shaped the way it is?

10. Look at the population pyramid for Kenya. How does the 5-9 age group compare to the 40-44 age group?

11. What might be happening in Kenya to cause the changes you described in the question above?

12. What is happening to Kenyans when they reach the age of 10-24?

13. Look at the population pyramid for Italy. How does the 0-14 age group compare to the 20-29 age group?

14. What might be happening in Italy to cause the changes you described in the question above?

15. Finally, look at the 80+ age group in the United States. What is the difference between the percent of females and the percent of males?

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