IB CHEMISTRY
Scientific Investigation · 3,000 words · 20% of final grade · 24 marks
4 criteria · 24 marks total
Explore every mark level for all 4 IA criteria with examiner tips and key questions.
15 ideas · 9 topics
Curated IA topic ideas with full RQ, variables, difficulty rating, and why each scores well.
Section by section
Tick off every requirement as you write — Introduction, Research Design, Data, Conclusion, Evaluation.
Model investigation
A full model IA with colour-coded annotations showing exactly which sentence earns which marks.
3,000 word limit
Paste your IA text and get an accurate count of only the words that count toward the 3,000 limit.
24
Total Marks
3,000
Word Limit
20%
% of Final Grade
4
Assessment Criteria