IB Chemistry

The IB Chemistry program is divided into two parts: Standard Level (SL) and Higher Level (HL). While both cover core chemistry concepts, the HL program delves deeper and includes material typically found in first-year university courses. The recommended teaching hours are as follows:

  • SL: 150 hours
  • HL: 240 hours

The curriculum was recently updated, and one of the key changes is the elimination of Paper 3. Here’s an overview of the new assessment format for both SL and HL:

Assessment at a Glance:

Type of Assessment Format of Assessment Time (hours) Weighting of Final Grade (%)
SL   3 80
HL   4.5 80
  • Paper 1:
    • Paper 1A: Multiple-choice questions
    • Paper 1B: Data-based questions and questions on experimental work
    • SL: 1.5 hours | HL: 2 hours
    • Weighting: 36%
  • Paper 2:
    • Short-answer and extended-response questions
    • SL: 1.5 hours | HL: 2.5 hours
    • Weighting: 44%

Internal Assessment (Scientific Investigation):

  • SL and HL: 10 hours | Weighting: 20%
  • The scientific investigation is an open-ended task where students gather and analyze data to address a self-formulated research question. The assessment is based on a written report with a maximum word count of 3,000 words.

Students are allowed to use a calculator for both paper 1 and paper 2.

Exam Dates:

The exam dates for IB Chemistry in 2025 are as follows:

  • Friday, May 16, 2025: Chemistry HL/SL Paper 1
  • Monday, May 19, 2025: Chemistry HL/SL Paper 2