social

What’s demography?

Demography is the study of population. Population means the total number

of people that live in an area. The population of the world is more than 7

billion people.

Why does population change?

Population changes

because people are born

or die. The average

number of children per

family is called the fertility

rate.

Population also

changes because

people move around.

This is called

migration.

How do we represent population?

We can represent population using graphs and charts.

a) is a pie chart; b) is a pyramid graph; c) is a line graph and d) is a bar

chart.

What information do pyramid graphs give

us?

Pyramid graphs give us information about population growth. They

also give us information about age and gender distribution.

We can divide the population of a country into groups according to various

factors, such as gender or age.

What population groups are there?

People that have a common language and culture form an ethnic group. This

means that we can divide populations into ethnic groups, such as Chinese,

Indian and Native American. We can also divide population into groups

according to religion.

What’s the population of Spain like?

Spain’s population density is 91

per km2. In some areas, such as

cities, there are many more

people living in each square

kilometre. In rural areas, there

are a lot fewer.

Spain’s population has increased

during the past century.

Population growth was especially

high from 2000 to 2011. In 2012

the population began to decrease.

There are 28 countries in the EU. As a result, the EU’s population contains

many different ethnic groups, and 7% of the EU’s population are immigrants.

The EU’s population is 52% female and 48% male.

What’s the population of Europe like?

The population density of the EU is 114 per km2. There are big differences

between the population densities of EU countries.

What have we learnt?

line graphs pyramid graphs

We can represent population using …

pie charts bar charts

What have we learnt?

gender ethnicity

Population groups include …

religion age