Real exams.
Real marking.
Real progress.
Practise on every past HSC Investigating Science exam since 2019 — and get your answers marked in seconds, the same way real HSC markers do it. You see exactly what you earned, exactly what was missing, and exactly what to do next time.
Practise, get marked, improve. That’s the whole loop.
Answer a real exam question
Type your answer, or just photograph your handwriting with your phone. Every question is from an actual HSC paper — nothing made up.
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Get marked like the real thing
Your answer is checked against the official marking rules for that exact question — the same ones HSC markers used. No guesswork, no inflated scores.
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Know exactly what to fix
Friendly feedback shows what you did well, the one thing that cost you marks, and how to earn them next time. Watch your skills climb week by week.
See how progress works →This is a real question from the 2020 exam.
A student wrote the answer on the right. Here’s the marking, exactly as it comes back — what earned marks, and one tip to stay safe at full marks. This is what every answer gets, in about half a minute.
For parents: the marking rules quoted here are the official ones published for this exam question. We show students the same standard the real markers hold them to — nothing softer, nothing invented.
Outline TWO experiments Priestley conducted. In your answer, refer to the data he collected in each experiment.
Priestley placed a mouse in a sealed glass jar and timed how long it took for the mouse to die. He then repeated the experiment with a green plant in the jar, and the mouse survived for a longer period.
Both boxes ticked on the official marking rules for this question — so it earns all 3 marks. If it had missed one, the feedback would say which one, and how to get it.
One answer is a mark. Twenty is a picture.
Every marked answer feeds seven named skills — the things examiners actually reward. You can see which are climbing, which have stalled, and open any one of them for the evidence behind it, quoted from your own answers.
Doing what the verb demands
Cause to effect, joined up
Using the data you were given
The right term, used correctly
Example board. Your own is built only from answers you have had marked — nothing is estimated, and a skill stays blank until there is enough work to say something honest about it.
When something keeps costing you marks, you drill it.
Your marked answers decide what comes up next — flashcards on the ideas you keep missing, short guides on what full marks actually looks like, and drills built from real exam questions.
Flashcards
Spaced repetition on the concepts, command words and vocabulary your own answers show you are missing.
Full-mark guides
What a top answer actually contains, shown with real marked samples — not generic study advice.
Question workouts
Take a real HSC question apart step by step, then rebuild the answer yourself.
Honest marking you can actually trust
Walk into the exam already knowing you can do it.
Free to start. Works on laptop and phone.