WG Unit IV Population

POPULATION

World Population=
8+ billion people

Why is Population a BIG Deal?

● The world reached its first BILLION

people in 1804 (6,000+ years)

● 2nd Billion = 1927 (123 years)

● 3rd Billion = 1960 (33 years)

● 4th Billion = 1974 (14 years)

● 5th Billion = 1987 (13 years)

● 6th Billion = 1999 (12 years)

● 7th Billion = 2011 (12 years)

● 8th Billion = Nov 2022 (11 years)

Yes, Population is a BIG DEAL!

Fill in the Blanks

Big Population Questions

• How does birth rate, death rate, and migration affect populations?

• Will population growth ever slow down?

• Why do people move from the country to the city?

• Why do people move out of a country? (Emigration)

• Why do people move into a country? (Immigration)

• How does a country's population change over time?

SCIENTISTS WHO STUDY
POPULATION ARE CALLED

Multiple Choice

People who study population are called

• Geologists

• Geographers

• Demographers

• Cartographers

How Birth and Death Rates Affect Populations

⚪ Natural increase = birth rate - death rate

⚪ Zero Population Growth (ZPG) happens when the birth rate and the death rate are
equal

⚪ Negative Population Growth (NPG) happens when the birth rate is less than the death
rate

Match

Match the following

• Birth Rate - Death Rate

• Birth Rate = Death Rate

• Birth Rate < Death Rate

Natural Increase

Zero Population Growth

Negative Population Growth (Declining)

• Natural Increase

• Zero Population Growth

• Negative Population Growth (Declining)

Birth and Death Rates aren’t the ONLY thing
affecting the size of a population….

⚪ TYPES OF MIGRATION:

● IMMIGRATION- people moving into a country.

● EMIGRATION- people exiting a country.

⚪ Calculate a country’s population growth:
(Births-Deaths) + (Immigrants-Emigrants) = Growth / Decline
Natural Increase Net migration

WAYS TO STUDY

POPULATION

6) Population Movement

● Migration is movement of people

from place to place

● A. Immigration: movement into a

country

● B. Emigration: movement out of a

country

● C. Urbanization: movement of

people from rural areas to cities

Match

Match the following

• Migration

• Emigration

• Immigration

Moving from country to country

Moving OUT of a country

Moving INTO a country

• Moving from country to country

• Moving OUT of a country

• Moving INTO a country

POPULATION

⚪ World currently growing larger due to higher birth rates in many Less Developed Countries (LDCs).

⚪ More Developed Countries (MDCs) have low or even negative growth rates (USA, Japan, Italy, Germany)

200 Countries in 4 Minutes (Hans Rosling, BBC)

⚪ Newly Industrialized Countries (NICs) are transitioning from agriculture and low-level manufacturing to modern industry.

WAYS TO STUDY

POPULATION

1) Natural Increase

BR - DR = NI


2) ZPG (Zero Population Growth)

BR = DR


3) NPG (Negative Population Growth)

BR < DR

Drag and Drop

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Rate minus ​

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Rate equals ​

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Increase

Drag these tiles and drop them in the correct blank above

Birth

Death

Natural

Artificial

Economic

Education

Match

Match the following

• Less Developed Country (LDC)

• Newly Industrialized Country (NIC)

• More Developed Country (MDC)

Haiti, Zambia, Bhutan, Afghanistan

China, Russia, Mexico

USA, Japan, Norway, Great Britain

• Haiti, Zambia, Bhutan, Afghanistan

• China, Russia, Mexico

• USA, Japan, Norway, Great Britain

Match

Match the following

• Less Developed Country (LDC)

• Newly Industrialized Country (NIC)

• More Developed Country (MDC)

High Birth Rate, High Death Rate

Transitioning to Industrial Economy

Low Birth Rate, Low Death Rate

• High Birth Rate, High Death Rate

• Transitioning to Industrial Economy

• Low Birth Rate, Low Death Rate

Match

Match the following

Less Developed, High BR & DR

Slow Growth (low BR, low DR)

Negative Population Growth BR<DR

• Less Developed, High BR & DR

• Slow Growth (low BR, low DR)

• Negative Population Growth BR<DR

WAYS TO STUDY

POPULATION

4) Population Density

How many people per square mile / kilometer

Most densely populated country in the world = Monaco (19k per square kilometer)

WAYS TO STUDY

POPULATION

5) Population Distribution

Where are the people located in a country?

WAYS TO STUDY

POPULATION

6) Population Pyramids

⚪ This type of display shows age and gender distribution for a particular region’s population (county, state,
country, etc.)

A way to display how population in a country changes over time

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Demographic Transition Model

Multiple Choice

What does a Demographic Transition Model display?

• How a population adapts to climate change

• How a population recovers from a natural disaster

• How a population changes over time

• How a population chooses a new government

ECONOMIC DEVELOPMENT

Used to identify countries that are developed and

developing.

● MORE Developed Countries have a great deal

of technology, manufacturing, and large service
industries. Examples: US, much of Europe,
Japan, etc.

● LESS Developed Countries do not have a great

deal of technology or large service industries.
Agriculture often remains the dominant economic
activity. Subsistence farming is quite common.
Among the poorer nations on Earth. Many
developing countries are in Asia, Africa, and Latin
America.

ECONOMIC DEVELOPMENT

● Newly Industrialized Countries (NICs) are transitioning from agricultural (less developed) to manufacturing / technology (more developed).

Examples of NICs are China, Russia, Brazil, Mexico.

Review:

⚪ How is population growth calculated?

⚪ How has population growth changed

throughout history?

⚪ Explain how the world’s population is

distributed.

⚪ What concerns face our world as

population numbers continue to
increase?