How MYP Sciences Is Assessed: Revision Notes

Condensed for quick recall of how the subject is assessed. For the full subject overview, use the IB MYP Sciences subject overview.

Why there’s no SL/HL split at MYP level

Like every MYP subject, Sciences does not distinguish Standard and Higher Level in the DP sense – differentiation happens through the depth and sophistication a student demonstrates within each criterion’s band descriptors, applied consistently whether the school teaches discrete or integrated science.

No SL/HL split — four criteria instead

Criterion	Focus
A — Knowing and understanding	Recall and scientific understanding
B — Inquiring and designing	Formulating investigations
C — Processing and evaluating	Handling data, drawing conclusions
D — Reflecting on the impacts of science	Ethical/social/environmental implications

Applies regardless of whether your school teaches discrete Biology/Chemistry/Physics or an integrated science course — same four criteria either way. Each scored on an 8-point scale (1-8).

If your school offers MYP eAssessment

Available in biology, chemistry, physics or integrated sciences — three tasks:

Task	Criteria	Marks
Knowing and understanding	A	25
Investigation skills (inquiry, design, data, evaluation)	B + C	50
Applying science (real-life implications)	D	25

The investigation-skills task is worth half the total marks — the single biggest component.

The four criteria in more depth

Each criterion is assessed against level descriptors organised in bands: criterion A rewards accurate recall and increasingly nuanced application of scientific understanding to unfamiliar contexts; criterion B rewards formulating a testable hypothesis or research question and designing a method capable of investigating it fairly; criterion C rewards accurate data collection and processing, appropriate presentation (tables, graphs), and drawing conclusions genuinely supported by the data obtained; criterion D rewards discussing the real-life applications and implications of scientific knowledge, including its social, ethical or environmental dimensions, rather than describing the science alone. A common weakness across criteria B and C is designing an investigation without a genuinely fair-test variable structure (identifying and controlling variables explicitly) – since this underpins how strongly a conclusion drawn from the data can actually be trusted.

Why investigation skills carry half the eAssessment marks

The 50 marks allocated to inquiring, designing, processing and evaluating (criteria B and C combined) reflect that MYP Sciences is built around developing genuine scientific method, not primarily content recall – a student who has memorised facts thoroughly but never practised designing a fair investigation, processing raw data into a meaningful graph, or evaluating a method’s reliability will underperform relative to their content knowledge. Revision that includes hands-on or past-investigation practice, not only reading and recall, is proportionally more valuable given this weighting than for many other MYP subjects.

How discrete and integrated science courses align

Whether a school teaches Biology, Chemistry and Physics as separate discrete subjects or combines them into an integrated science course, the same four criteria and the same eAssessment structure apply – the underlying scientific method being assessed (formulating a question, investigating it, processing data, evaluating results, and considering real-world implications) is identical regardless of how the content is organised into courses. This means revision strategies that work for a discrete-science MYP student (practising investigation design, data processing, evaluation) transfer directly to an integrated-science student, and vice versa.

How MYP Sciences connects forward to DP sciences

The investigative skills built through criteria B and C – formulating a research question, designing a fair method, processing and evaluating data – map directly onto the internal assessment students will complete in whichever DP science (Biology, Chemistry or Physics) they progress to, where an individually designed and written-up investigation is a formally graded, externally moderated component worth 20% of the final grade. Students who have genuinely engaged with MYP Sciences’s investigation-skills criteria, rather than focusing revision narrowly on content recall, typically find the DP internal assessment’s expectations considerably more familiar.

Exam traps

• Focusing revision only on recall (Criterion A, 25 marks) and neglecting investigation-skills practice (Criteria B+C, 50 marks).
• Treating “reflecting on impacts” (Criterion D) as an optional add-on rather than a formally assessed criterion.
• Assuming discrete-science students are assessed differently from integrated-science students — the criteria are identical either way.

Self-test

1. Name the four MYP Sciences criteria.
2. Which eAssessment task is worth the most marks, and what does it cover?
3. Does the assessment model differ between discrete and integrated science courses?
4. What does Criterion D specifically assess?
5. Why does designing a fair investigation matter for how much a conclusion can be trusted?
6. Name one DP-level assessment component that MYP Sciences’s investigation-skills criteria (B and C) prepare students for.

Answers: 1. Knowing and understanding; Inquiring and designing; Processing and evaluating; Reflecting on the impacts of science. 2. The investigation-skills task (50 marks), covering inquiry, design, data collection and evaluation. 3. No — the same four criteria apply regardless of whether a school teaches discrete sciences or an integrated course. 4. Reflecting on the real-life implications of science — social, ethical and environmental. 5. Because identifying and controlling variables explicitly underpins whether the data obtained genuinely isolates the effect being investigated, which determines how strongly a conclusion drawn from that data can be trusted. 6. The DP science internal assessment (an individually designed, carried out and written-up investigation, worth 20% of the DP science grade).

Official syllabus

International Baccalaureate Organization, Sciences subject brief (Middle Years Programme), from 2014 – the same source cited by the subject overview.