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Open your study areaThree-section test · Data reading
Prepanchor Three-Section Test Data-Reading Pack
For students taking the optional science section in the ACT® test format, or applying to programs that ask for it.
- Reading graphs and tables
- Experiment design
- Comparing viewpoints
What's inside
- 850+data-reading questions with explanations
- 20+timed science mocks
The science section is optional: 40 questions in 40 minutes, scored separately from the Composite. Timed mocks follow that format. Each mock ends with an estimated practice range. It is not a prediction of an official score. Every question is written by Prepanchor; no College Board or ACT® material is used.
How the Three-Section Test Science practice test works
Here is every part of the pack. Items with a lock open the moment you buy.
Practice questions
By section and topic, each with a worked explanation
850+ questions
- Three-Section Data-Reading858 questionsPractice
Timed practice sets
Timed, in the test's own format
20+ sets
- Three-Section Test Science practice test20+ different setsStart
Every count here comes from the pack's live content.
Try it before you buy
Everything together
Get this pack and everything else for $85
- Three-Section Test Data-Reading Pack$12
- Three-Section Test Math Pack$19
- Three-Section Test English Pack$14
- Three-Section Test Reading Pack$15
- Three-Section Test Video Course$29
- Full-length timed mocksBundle only
$89 if bought one by one, so the bundle saves $4. Buy the Three-Section Test Data-Reading Pack now and its price comes off the bundle later.
Get the bundle- We fix it or refund itIf a pack doesn't work because of a problem on our side.
- Instant accessYour pack opens as soon as you pay.
- Independent publisherOur own questions and guides, not affiliated with any exam body.
- Secure checkoutPayments handled by Lemon Squeezy.
Questions
Do I need the science section?
It is optional and not part of the Composite. Check whether the colleges or programs on your list ask for it.
What do I get, and in what format?
Questions and timed mocks run in your browser and track your progress by topic.
I'm a parent. What should I know?
Each pack is for self-study: your teen answers questions and reads a full explanation for each one, in sessions as short as they like. Progress is tracked by topic, so you can sit down together and see what needs work. There's no separate parent login yet. Nothing here predicts an official score, and we never promise a result.
How long do I keep access?
12 months of online access. The PDFs you download are yours to keep.
Which devices does it work on?
Any phone, tablet or computer with an up-to-date browser. Your progress follows your account.
Is it in the app too?
No. The pack works in the web browser on any phone, tablet or computer, so there's nothing to install.
Can I get a refund?
Every pack is digital and opens the moment you pay, so we don't refund a change of mind. If something doesn't work because of a problem on our side and we can't fix it, we refund you. Refunds never depend on your test result. How refunds work.
Is this official?
No. Prepanchor is an independent publisher, not affiliated with College Board or ACT Education Corp. Every question and explanation is written by us. We use no College Board or ACT® material, including their practice tests.
Free from act.org
ACT Education Corp. has free full-length practice tests and sample questions for every section. Use them alongside this pack.
- Free practice tests and prep, on act.org checked 26 Oct 2026
- Sections, questions and times, on act.org checked 26 Oct 2026
- How the Composite is worked out, on act.org checked 26 Oct 2026