Selecting the right Extended Essay (EE) topic is one of the most important decisions in the IB Diploma Programme. A well-chosen topic makes research more manageable, supports deeper analysis, and helps students stay engaged throughout the writing process.
Rather than choosing a broad subject, focus on a question that is specific, researchable, and supported by reliable sources.
What Makes a Good EE Topic?
A strong Extended Essay topic should:
Match your interests and strengths.
Fit the requirements of your chosen IB subject.
Be narrow enough to investigate within 4,000 words.
Allow for critical analysis instead of simple description.
Be supported by sufficient academic sources or data.
IB Extended Essay Ideas by Subject
English
How does symbolism shape the themes of a selected novel?
How does a playwright use dialogue to develop character relationships?
How does narrative perspective influence the reader's understanding of conflict?
Compare the treatment of identity in two literary works.
Biology
How does light intensity affect plant growth?
What is the effect of temperature on enzyme activity?
How do different environmental conditions influence bacterial growth?
How does soil pH affect seed germination?
Chemistry
How does temperature affect the rate of a chemical reaction?
Which factors influence corrosion in different metals?
How does acid concentration affect reaction speed?
What factors affect the stability of vitamin C in fruit juices?
Physics
How does the launch angle affect projectile range?
What factors influence pendulum motion?
How does surface material affect friction?
How does resistance change with wire length?
Mathematics
Modelling population growth using mathematical functions.
Applying calculus to optimise real-world problems.
Investigating probability through game theory.
Exploring statistical models using real datasets.
Economics
How do minimum wage policies affect employment?
What factors influence housing prices in a local market?
How does inflation affect consumer spending?
What is the impact of tourism on a regional economy?
Business Management
How effective is a company's digital marketing strategy?
How does leadership style affect employee motivation?
What factors contribute to customer loyalty?
How does pricing strategy influence sales performance?
History
What were the key causes of a major historical conflict?
How effective was a specific political reform?
How did economic factors influence a historical event?
Compare the leadership styles of two historical figures.
Avoid These Common Mistakes
Many students lose marks because they:
Choose topics that are too broad.
Select questions without enough research material.
Focus on description instead of analysis.
Change topics late in the writing process.
Ignore subject-specific assessment criteria.
A carefully planned research question usually saves significant time later.
Develop Your Research Question Early
Before starting your research, ask yourself:
Can this question be answered with evidence?
Is the scope realistic for 4,000 words?
Does it require analysis rather than explanation?
Will reliable sources be available?
Refining your question before writing often leads to a stronger Extended Essay.
Students looking for IBExtended Essay ideas should choose topics that genuinely interest them while meeting IB assessment requirements. With careful planning, regular feedback, and subject-specific guidance, the Extended Essay becomes a valuable opportunity to develop research, analytical, and academic writing skills. TEMPERA EDUcation supports IB students throughout the Extended Essay process, from refining research questions to organising evidence and improving the quality of academic writing.