ACT Science has three passage types: Data Representation (graphs and tables with minimal text), Research Summaries (experiment descriptions with data), and Conflicting Viewpoints (competing theories with almost no figures). Recognizing the type tells you how much to read and which strategy to use. Overview in the best ACT Science strategy.
Data Representation
Usually two or three passages per test. Heavy on graphs, charts, and tables; light on prose. Most questions point to a named figure, so a questions-first approach works well. Deep dive: how to tackle Data Representation passages.
Research Summaries
Usually three passages per test. Each describes one or more experiments with tables linking trials to results. You will see experimental design questions here. Deep dive: how to tackle Research Summaries passages.
Conflicting Viewpoints
Exactly one passage per test. Several scientists or students present competing hypotheses with little data to lean on. This is the most reading-heavy Science passage—save it for last. Deep dive: Conflicting Viewpoints strategy and tips.
Match your reading method to the type
Data and Research passages reward skipping straight to questions or figures first. Conflicting Viewpoints usually needs you to read each viewpoint before comparing them. Compare ranked approaches in 5 strategies for reading ACT Science passages.
Practice by type
When you review misses, label the passage type. If Data Representation errors cluster, drill graphs; if Conflicting Viewpoints eats your time, isolate that passage in timed blocks on thirty-six. For the full improvement plan, see how to improve your ACT Science score.
Start practicing
Start with a free diagnostic, then drill your weak spots with 15-question quizzes and track how you're doing across Reading, English, and Math. Compare plans whenever you're ready to go further.
This article offers general ACT prep guidance. The ACT can change from year to year, including its format, scoring, policies, test dates, and fees, so always confirm the latest details on the official ACT website at act.org before you make decisions. ACT® is a registered trademark of ACT, Inc. thirty-six is not affiliated with, endorsed by, or sponsored by ACT.