Earth & Environmental Science
Earth and Environmental Science studies earth systems, climate and environmental change.
Content-broad with genuine fieldwork; rewards organised notes and steady revision.
The breadth of content and the data and skills questions.
This is the spread of scaled marks across everyone who took the subject — not how hard it is. A high mean usually means a strong cohort sat it. The figures are from UAC’s latest scaling report (2025), with the year-by-year trend above.
Where might my mark scale to?
Set the HSC mark you’re aiming for. We’ll show a band of where that tends to scale — never a single number, never a prediction.
Your course mark, out of 100 — a 2-unit course.
How does HSC Earth & Environmental Science scale?
In the UAC Preliminary Report on the Scaling of the 2025 NSW HSC, Earth & Environmental Science had a scaled mean of 22.8 out of 50 per unit, and its scaled mean has been very stable over recent years. Scaling reflects how academically strong the cohort is — not how hard the subject is — and there is no exact HSC-to-scaled conversion, so it's best read as a range, never a single number.
How hard is HSC Earth & Environmental Science, and how much work is it?
Earth & Environmental Science is moderate effort — typically 3–4 hrs/wk. Content-broad with genuine fieldwork; rewards organised notes and steady revision. Where students most often struggle: The breadth of content and the data and skills questions.
What does HSC Earth & Environmental Science build?
Earth and Environmental Science studies earth systems, climate and environmental change. It especially develops practical & lab craft, analytical reasoning, and independent research.
Who should take HSC Earth & Environmental Science?
Students who like the outdoors, earth science and real-world issues. It may be more of a grind for students wanting a pure lab-science or essay-only subject.
Where’s this data from?
Scaling figures are from the UAC Preliminary Report on the Scaling of the 2025 NSW HSC (Tables A1, A3). Scaled marks are out of 50 per unit.
There is no exact HSC-to-scaled conversion — for any one HSC mark there is a range of scaled marks, which is why we only ever show a band.
The skills, effort and “who it suits” notes are Intuition Education’s editorial guidance, not UAC data.
Why we don’t do an ATAR calculator →