IB Chemistry: how to actually get a 7

I sat IB Chemistry at Higher Level and finished with a 7 out of 7. The grade mattered, but what mattered more was understanding exactly why I got it. Knowing the chemistry is only half the job. The other half is knowing how the exam is marked, and that is where most points are won or lost.

Here is what actually moves your grade toward a 7.

Read the command terms like instructions

Every IB question opens with a command term, and it tells you exactly what the examiner wants. "State" needs one short fact. "Explain" needs a reason and a link. "Deduce" means you must reach a conclusion using given data, not just recall. Students who answer "describe" when the question says "explain" lose marks even when they know the content. Before you write, underline the command term and answer that, nothing less and nothing more.

Write for the markscheme

IB marks are awarded for specific points, not for general understanding. A two mark question usually wants two distinct, markable ideas. Practice writing answers that name each idea clearly, in order, so the examiner can tick them off. Vague paragraphs that circle the answer rarely score full marks. Short, precise, point by point answers do.

Master the data booklet and calculations

The data booklet is allowed in the exam, so the examiner assumes you can use it fast and correctly. Know where the constants, formulas and spectra are before exam day. For calculations, show every step and keep units attached to every number. If you make a small slip but your method is visible, you often still earn most of the marks. Skip the working and one wrong number can cost everything.

Practice with past papers, by paper

In the current syllabus (first exams 2025) there is no Paper 3 and no option topics. Paper 1 has two parts: Paper 1A is multiple choice and rewards speed and recognition, and Paper 1B is data-based and asks you to work with experimental data across the course. Paper 2 is short-answer and extended response and rewards structured writing. Each part is a different skill, so practice them separately and under time. After each one, compare your answers to the markscheme and note exactly where you would have lost a mark. That single habit, done consistently, is what turns a 5 into a 7.

A simple study rhythm

Short, regular sessions beat occasional marathons. Understand why a topic works before you memorize it, then drill it with questions until it feels automatic. Build in spaced review so older topics do not fade, and finish your content with time to spare so the final stretch is calm revision, not panic.

A 7 in IB Chemistry is not reserved for a special kind of student. It comes from understanding the chemistry and learning the rules of the exam. If you want to prepare with someone who scored a 7 at HL and teaches IB Chemistry, take a look at our IB Chemistry course.