Skip to main content
All subjects
I
Sciences

Investigating Science

2
UNITS
What this subject builds

Investigating Science is hands-on — you run real experiments and learn to ask good questions.

Independent research
Running your own investigation from question to conclusion.
Practical & lab craft
Real experimental design, data collection and analysis.
Writing & expression
Reporting findings clearly and reflecting on the process.
Full skill profile
Writing & expression
Argument & persuasion
Analytical reasoning
Numeracy & modelling
Practical & lab craft
Independent research
Creativity & making
Detail & recall
Filled dots = how strongly this subject develops each quality. What do these mean?
Effort & difficulty
INTENSITY
Moderate
TYPICAL LOAD
2–3 hrs/wk

Skills-based and project-driven rather than content-cramming.

Where students struggle

Self-managing depth research tasks and keeping investigations rigorous.

Who it suits
Tends to thrive
Curious students who like doing science more than memorising it.
May find it a grind
Students who want a content checklist to revise from.
How it scales
Scaled mean (per unit)
20.5 / 50
3-YEAR STABILITY
Very stable
Scaled mean by year: 2023 20.1 +0.2 2024 20.3 +0.2 2025 20.5
0 10 20 30 40 50 mean 20.5

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.

3,564
sat it in 2025
44.3%
female
99.7
highest ATAR
Mark explorer

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.

Expected HSC mark 85 / 100
4070100

Your course mark, out of 100 — a 2-unit course.

A mark in the high 80s tends to scale to roughly
30–33 per unit / 50
Scaled marks are measured per unit, out of 50 — the standard UAC scale. There’s no exact conversion, so this is a zone, not a pinpoint.
0 10 20 30 40 50 mean 20.5
There’s no exact HSC-to-scaled conversion. Scaling depends on how the whole cohort performs each year, so treat this as a feel for the range — not a calculator.
Common questions
How does HSC Investigating Science scale?

In the UAC Preliminary Report on the Scaling of the 2025 NSW HSC, Investigating Science had a scaled mean of 20.5 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 Investigating Science, and how much work is it?

Investigating Science is moderate effort — typically 2–3 hrs/wk. Skills-based and project-driven rather than content-cramming. Where students most often struggle: Self-managing depth research tasks and keeping investigations rigorous.

What does HSC Investigating Science build?

Investigating Science is hands-on — you run real experiments and learn to ask good questions. It especially develops independent research, practical & lab craft, and writing & expression.

Who should take HSC Investigating Science?

Curious students who like doing science more than memorising it. It may be more of a grind for students who want a content checklist to revise from.

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 →
Call us Enquire now