Choosing the right topic for your Internal Assessment (IA) can be challenging, but it's crucial for success in the IB program because it can make or break your grade (yes, even 20-30% can push you from a 6 to a 7). This list of ideas is designed to be a springboard to inspire your own unique IA topics that cuts to the chase.
Each idea includes a brief description, difficulty rating, and relevant topics/approaches to consider, making it easier for you to select and refine your IA project. Use these suggestions as a starting point and adapt them to fit your interests and the specific requirements of your subject.
The Effect of pH on Enzyme Activity
- Difficulty: Easy
- Topics: Enzymes, pH levels, reaction rates
Photosynthesis Rates under Different Light Intensities
- Difficulty: Moderate
- Topics: Photosynthesis, light intensity, chlorophyll
Antibiotic Resistance in Bacteria
- Difficulty: Hard
- Topics: Microbiology, antibiotics, resistance mechanisms
The Impact of Soil Types on Plant Growth
- Difficulty: Easy
- Topics: Soil composition, plant biology, growth rates
Genetic Variation in Drosophila Populations
- Difficulty: Moderate
- Topics: Genetics, fruit flies, allele frequency
Effect of Temperature on Heart Rate of Daphnia
- Difficulty: Easy
