Free online practice test
ACT Science Full Mock Test 1
Enhanced ACT
Simulate the complete Science paper across 3 sections with exam-pattern scoring and timing.
Syllabus-checked original practice
Mapped to the official Science syllabus and answer-checked on 15 August 2026.
View official pattern sourceScoring note: No negative marking. Raw score out of 18 shown here; the official test reports a scaled 1-36 score instead.
Test-day essentials
Know before you start
- The timer starts as soon as you click "Start test" and the test auto-submits when time runs out.
- Mark questions for review and return to them while their section or timing group is still open.
- Your answers and timer deadline are saved on this device, so a refresh can resume safely.
- After submitting, review section and topic scores, explanations, and source links.
About this ACT Science mock test
This free mock contains 18 original practice questions mapped to the ACT Science syllabus and pattern. Every checked answer includes an explanation and a source record.
What the test covers
Data Representation
5 questions
Research Summaries
9 questions
Conflicting Viewpoints
4 questions
Scoring and result analysis
Correct answers earn 1 mark and wrong answers deduct 0 marks. Unattempted questions score zero. After submitting, you receive section-wise and topic-wise accuracy, time spent, answer explanations, and source links.
Frequently asked questions
Do I need to take the ACT Science section?
For most colleges, no. Since the 2026 Enhanced ACT rollout, Science is optional and does not factor into your Composite score. Only a small number of schools, including Georgetown, Boston University, Marquette, Pomona, and East Carolina, along with the U.S. service academies, generally expect it, so check your target colleges' current testing policy directly.
Does the ACT Science score count toward my Composite score?
No. Composite is calculated only from English, Math, and Reading. Science is still scored on the same 1 to 36 scale and reported separately when taken.
What does the ACT Science section actually test?
Data interpretation and scientific reasoning from passages presenting data, experiments, or differing viewpoints, not memorized science facts.
Is this an official ACT question paper?
No. It is an independent practice mock containing original questions mapped to the official Enhanced ACT Science section format.
More ACT practice
15 other reviewed tests are published for this exam, and these are the nearest 6. The rest of this Science stage comes first, then the other stages.
- English Full Mock Test 1 · 25 questions · English
- Math Full Mock Test 1 · 24 questions · Math
- Reading Full Mock Test 1 · 18 questions · Reading
- Usage and Mechanics Sectional Test 1 · 13 questions · English
- Rhetorical Skills Sectional Test 1 · 12 questions · English
- Pre-Algebra and Elementary Algebra Sectional Test 1 · 10 questions · Math