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Population Momentum (1)

Name: ______________________

Block: _____________________



Population Momentum

  1. We are looking at a simulation of Nigeria’s population changes from 2015 to 2050. First write down any observations you have as we near 2050.



  1. Predict what would happen if the average age of childbearing women were increased by 5 years (fewer teenage pregnancies) and record your prediction (rise, fall, similar.)



  1. Record your observations after we increase the childbearing age by 5 years, 15 years, and decreasing it by 5 years.



  1. We are now going to see how Nigeria’s population structure would change if it were to suddenly have the same birth and death rates as the USA from now until 2150. How and why does the pyramid shape change?



  1. How does an increase or decrease in the average childbearing age group change the population? Why do “first world” countries tend to have older childbearing women than “third world” countries?



  1. We are looking at a simulation of Japan’s population changes from 2015 to 2050. First write down any observations you have as we near 2050.



  1. Predict what would happen if the average age of childbearing women were increased by 5 years (fewer teenage pregnancies) and record your prediction (rise, fall, similar.)



  1. Record your observations after we increase the childbearing age by 5 years, 15 years, and decreasing it by 5 years.



  1. We are now going to see how Japan’s population structure would change if it were to suddenly have the same birth and death rates as the USA from now until 2150. How and why does the pyramid shape change?



  1. Did the pattern of population change match your prediction? If not, why not? Compare the final population pyramid for Japan to the one you sketched of Nigeria. How do they compare, and why are they similar or different?



  1. How are Japan's numbers different from Nigeria's? What do you think accounts for the difference?



  1. Many Western European countries are giving monetary incentives to employees who have multiple children. Why would they do this? How would a baby boom change Japan's demographics?

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