The World and Its People

Chapter 3: The World's People

Student Web Activity

"The World Population Clock"

In this chapter, you have read about the world's rapidly growing population. As the population increases, so does the need for food, health care, education, and other resources. Demographers study the characteristics of population. The U.S. Constitution requires the government to make a count of the population of the United States every ten years. Population experts at the U.S. Census Bureau compile the results of these population studies and others from around the world and throughout world history. These numbers are used to make decisions on taxes, spending, and other government policies.

Destination Title: U.S. Census Bureau

Note: Clicking on the link above will launch a new browser window.
Need help using your browser for this activity? Click here for tips.

Start at the U.S. Census Bureau site.

  • Find the menu on the right side of the screen.
  • Click on Population Clocks.

After you have read through the information, answer the following questions.

What is the current U.S. population?
What is the current world population?
Click on World POPClock. Then click on World Vital Events. How many births are there per second in the world? How many deaths per second?
What is the natural increase per second in the world?
Click the "back" button to find Historical Estimates of World Population or go to ( Use the information in the chart and in the United Nations world population link at the bottom of the screen to create a bar or line graph that displays the world population from the year -10,000 to the year 2000. Use the numbers in the far-left column (under "Summary-Lower") when creating your graph. You should not list every year, but be sure that your dates have equal time intervals between them.
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