KS3 · Geography

Why is the world unequal?

Zambia sells a lot of copper, then the copper price falls. Follow that one thread and watch colonial history, borrowing and public services all tug.

Geography · Why is the world unequal?

Pull one thread: what happens when copper's price falls?

Zambia and the UK are at very different stages of economic development. Here are some causes behind that gap. Draw an arrow from one cause to another wherever you think the first one leads to the second. Then compare your web with this lesson's.

  1. Colonial rule
  2. Landlocked location
  3. Needing good relations with neighbours
  4. Dependence on copper exports
  5. Trade deficit
  6. Debt
  7. Development gap between Zambia and the UK (outcome)
Add a link

No links yet.

Geography · Four types of cause

Which type of cause is it?

Sort each cause into the type it belongs to. Pick a cause, then pick a type.

Still to sort

Physical (0)

About the environment: climate, the shape of the land, location, natural hazards.

Where the line is: Being landlocked is physical. Needing neighbours' goodwill to reach their ports is political.

Economic (0)

About what a country produces, what it earns and how it trades.

Historical (0)

About decisions and events from the past that still shape the pattern of inequality today.

Political (0)

About how countries deal with each other.

Where the line is: Political causes can be linked to physical ones: a landlocked country's trade depends on other countries' ports.

10 of 10 still to sort.

Naming the type is the first step to seeing how the types link.

Geography · What do you think?

Is it just the climate and the landscape?

A group of students are asked why some countries are less developed than others. Each gives an idea.

Which idea is closest to what you think right now?
How sure are you?

Geography · A historical cause

?

Reason it through

Why do borders drawn in 1884 matter for inequality?

Link 1 of 4

First link · your turn

In 1884 European countries wanted something in Africa. What?

2
Locked — reveal the link above first
3
Locked — reveal the link above first
4
Locked — reveal the link above first

Predict, then check: Nepal

Nepal is mountainous, prone to landslides and earthquakes, and landlocked between China and India. Landlocked means it has no coastline of its own.

Which of these would you predict about Nepal's trade?

WHAT YOU'VE LEARNED

A quick recap of today's lesson.

Physical, economic, historical and political causes, and how they link

What you need to know

  • Countries differ a lot in development. The causes of that gap are grouped as physical, economic, historical and political.
  • Physical geography is one cause, but human factors, past and present, are as influential. The environment is not the only cause.
  • Physical causes: arid or semi-arid climate, topography (the shape and height of the land), remote or landlocked location, and natural hazards.
  • Have a goA country has an arid climate and is hit by earthquakes. Which of the four types of cause is that?

    Physical (environmental).

    Climate and natural hazards belong to the physical environment, unlike trade, history and relations between countries.

  • Some physical factors are an advantage for development, such as fertile soils, mineral-rich geology and a natural port.
  • Colonialism is one country controlling another, often exploiting its people and resources. It is a historical cause that still shapes inequality today.
  • Have a goYour classmate Sam says: "Colonialism is over, so it can't affect inequality now." Is Sam right?

    No. It is a historical cause that still shapes inequality today.

    Sam treats "it ended" as "it stopped having effects", but historical causes still shape the pattern of global inequalities.

  • After the 1884 Berlin Conference, European countries divided up Africa. Borders were drawn quickly, often as straight lines, by people who knew little of the land and its peoples.
  • Neocolonialism is indirect control of one country by another through economic power or cultural influence.
  • In low income countries most people work in primary industries like mining, farming and fishing, making raw materials that trade cheaply.
  • Relying on one export, like Zambia's copper, is risky: if its price falls, there is less money to pay for imports.
  • Have a goCopper's price falls. Does Zambia's export money go up or down, and what gets squeezed?

    Down, so there is less money to pay for imports.

    Zambia relies heavily on copper, so a price fall cuts the value of its exports and leaves less to pay for imports.

  • Imports worth more than exports is a trade deficit. Years of it can mean debt, and debt interest leaves less for public services.

The big picture

Global inequality has physical, economic, historical and political causes, and they link together rather than acting alone. Zambia shows how colonial history, a landlocked location, dependence on copper, trade deficits and debt combine, and Nepal shows how mountains, hazards and a landlocked position link geography to politics.

Key points

1Causes of global inequality can be grouped as physical, economic, historical and political, and they link together.
2Physical geography is a cause, but human factors, past and present, are as influential.
3Colonialism and the borders drawn after the 1884 Berlin Conference are historical causes that still shape inequality.
4Relying on one export makes an economy vulnerable to price falls.
5Years of trade deficit can lead to debt, and debt interest leaves less money for public services.

Worked example

Problem

Country X exports goods worth £4 billion and imports goods worth £5 billion in a year. Is this a trade deficit or a trade surplus, how big is it, and what could years of it lead to?

⚠ Watch out

Saying poorer countries are poor because of their climate or landscape. Physical geography is one cause, but human factors, past and present, are as influential, and some physical factors, like fertile soils or a natural port, are an advantage.

🧠

Memory hook

Four threads, one web: physical, economic, historical, political. Pull one, like the copper price, and the others tug.

✓

Check yourself

Zambia is landlocked, depends on copper, and was once a colony. Pick two and write one sentence on how they link to the gap with the UK.

Flashcards

(14)
The four types of cause of global inequality
Physical (environmental), economic, historical and political. They link together rather than acting alone.
Topography
The shape and height of the land. Low-lying topography can limit economic development.
Landlocked
A country with no coastline of its own. Trade is more costly, and its trade depends on other countries' ports.
Physical advantages
Fertile soils, mineral-rich geology and a natural port can all be an advantage for economic development.
Colonialism
The occupation, management and control of one country by another, often involving exploitation of its people and resources.
Berlin Conference, 1884
After it, European countries competed to take control of African land. Borders were drawn with little knowledge of Africa's physical geography and ethnic groups.
Neocolonialism
Indirect control of one country by another via economic power or cultural influence.
International relations
The way nations interact with and regard each other in relation to political, economic and cultural matters.
Primary industry
Industry such as mining, farming and fishing, which produces raw materials like iron ore and wheat.
Commodity
A raw material, such as iron ore or wheat, traded in the global economy. Commodities are traded cheaply.
Overdependence on a single export
Makes an economy vulnerable to price changes. A commodity falls in price if supply is greater than demand in the global market.
Trade deficit
The value of imports is greater than the value of exports.
Trade surplus
The value of exports is larger than the value of imports.
Debt
Money a government owes to lenders. It limits development, because paying interest takes money from public services.

Tap any card to flip it, or use Study as deck to go through them one at a time. In the full lesson these run as a spaced-repetition deck — you rate each card Hard, Good or Easy and the tricky ones keep coming back until they stick.

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How this lesson was checked. This KS3 Geographylesson was published through Lightbulb Learning's human-designed editorial process — the educational standards, accuracy rules and publication checks it must pass were authored and approved by Philip Halpin. It passed subject-specific assessment, automated educational checks and technical publication verification before going live (publication checks completed 9 October 2026). Published pages are monitored, human spot-checking is ongoing across the lesson library, and anything found wrong is corrected or withdrawn. How our lessons are made and checked. Spotted a mistake? Email hello@lightbulblearning.co and we'll review it.