Key Word Picture Definition Population Total number of people Population density The total number of people per square mile. Birth Rate The number of live births each year per 1,000 people Death rate The number of deaths each year per 1,000 people Infant mortality rate The number of babies that die each year per 1,000 births Growth Rate Birthrate – Death Rate = Growth Rate How quickly the population is growing. Population Distribution How the population is spread out Demographers Scientists who study population Life Expectancy The average number of years that people live Green Revolution New farming methods that greatly increased the food supply, allowing population growth to be possible.

Daily Work Pick any three terms and write two sentences about them. Population Population density Birth Rate Death rate Infant mortality rate Growth Rate Population distribution

What do demographers study? Essential Question What do demographers study? TN State Standard 7.3.8

Population Total number of people 2005 World 6.5 billion United States 297 million

Scientists who study population Demographers Scientists who study population

The number of deaths each year per 1,000 people Death Rate The number of deaths each year per 1,000 people World 9 United States 8

The number of live births each year per 1,000 people Birthrate The number of live births each year per 1,000 people World 21 United States 14

Growth Rate How quickly the population is growing Birthrate – Death Rate= Growth Rate World 1.2 United States 0.6

The number of babies that die each year per 1,000 births Infant Mortality Rate The number of babies that die each year per 1,000 births World 54 United States 6.6

Population Distribution How the population is spread out Rural Urban

The total number of people per square mile Population Density The total number of people per square mile World 125 people per sq mile United States 80 people per sq mile Canada 8 people per sq mile Japan 876 people per sq mile Puerto Rico 1132 people sq mile

World Population Density 2003

U.S. Population Density 1960

The average number of years that people live Life Expectancy The average number of years that people live World Males = 65 Females = 69 United States Males = 75 Females = 80

Green Revolution New farming methods that greatly increased the food supply, allowing population growth to be possible

Summarize Social Studies journal: If you were a demographer, what would you study? What organizations would you be able to help and how?