Deciding whether to take the ACT with or without the optional Science section, is an individual decision. To understand the content, format, and scoring of the ACT, please read Insider Insight Into the New, Shorter ACT.
Our Recommendation
We currently recommend that students take their first paper-based practice ACT with Science. Deciding whether to include Science on an official ACT is an individual decision that depends on the student’s score and intended major. This also applies to students who have already taken an ACT with Science and are deciding their next steps.
While making the decision, students should register for an official paper-based ACT with the Science section. They can decide to drop Science when they check in on test day, so registering for it in advance keeps all options open.
What the ACT Science Section Tests
The 40-minute Science section is not truly a science knowledge test. The focus is on analyzing charts, tables, and studies, reading data quickly, understanding experimental design, and comparing hypotheses.
The section has 40 questions across seven passages in three formats:
- Data Representation: reading graphs and tables.
- Research Summaries: analyzing experiment design and results.
- Conflicting Viewpoints: comparing competing scientific explanations.
Which Colleges Require or Recommend ACT Science?
As of today, Pomona College and Marquette University (both are test-optional) are the only colleges requiring that all applicants submitting an ACT score include the Science section. However, many schools including Duke University and Georgetown encourage taking and submitting the Science section, particularly for STEM students majoring in engineering or the sciences.
For more specifics, see our blog post, College Admissions Update: The Shift Back to SAT/ACT Requirements.
Preparing for ACT Science
Preparation focuses on format familiarity and speed, not reviewing academic science knowledge. Carnegie Prep’s tutors have incorporated the current ACT format into lessons so students feel confident on test day.
A straightforward approach:
- Start with untimed practice passages to build accuracy before worrying about pace.
- Move to timed full-section drills once accuracy is solid. Data Representation and Research Summary passages tend to be the fastest; Conflicting Viewpoints tend to take the most time.
- Pro Tip: Take a Practice ACT with Carnegie Prep — every student’s first practice ACT is free.
- Review every mistake carefully. Understanding why an answer was wrong – misread graph, misidentified hypothesis, or a rushed guess – is what drives improvement.
Common Questions About ACT Science
Q: Is the ACT Science section required?
The Science section is optional. Students register for it separately and it does not affect the composite score, which is the average of English, Math, and Reading. Some colleges still require or recommend it, so families should confirm specific requirements for every school.
Q: Do any colleges still require ACT Science?
Yes. Pomona College and Marquette University (which are test-optional) are the only schools currently requiring that all applicants submitting an ACT score include the Science section. Many colleges, including Duke University and Georgetown University, recommend taking and submitting the Science section, particularly for STEM students majoring in engineering or the sciences. Policies can change, so confirm directly with each school before registration.
Q: What does ACT Science test?
ACT Science tests data interpretation and scientific reasoning through the analysis of charts, tables, and studies. Most questions are answerable from the passage itself, though the current format includes a slight increase in questions that draw on outside science knowledge. Given the time pressure of this section–40 questions in 40 minutes–one of the biggest drivers of success is the ability to work quickly and efficiently.
Q: Should students register for Science even if they are unsure?
Yes. We recommend registering for the ACT with the Science section. Students can decide to drop it when they check in on test day. They cannot add it after registration closes, so registering upfront keeps all options open.
Q: Does taking Science give students an additional score?
Yes. Students who take Science receive a Science score and a STEM score, which is the average of Math and Science. Just like the other three ACT section scores and the overall composite score, both the Science and STEM scores are also scored out of 36. For students applying to STEM-focused programs, the combined STEM score can provide useful additional context.
Unsure where to begin? Our Academic Advisors are here to help you make the right choice. Email us at [email protected] or call us at 203.352.3500 for a free consultation today.
