The ACT Science test consists of 40 questions that must be answered within the 35-minute time limit. The test consists of several science passages, each of which focuses on one of the following subject areas: biology, chemistry, earth/space sciences, and physics. Each passage is presented in one of three different formats: Data Representation, Research Summaries, and Conflicting Viewpoints.
Though the passages and questions focus on scientific topics, they do not require students to recall specific scientific facts. Instead, students are asked to understand, analyze, and evaluate information using the various paragraphs, graphs, tables, charts, and diagrams that make up each passage. Below you can find more detailed information about each passage format, as well as a sample ACT Science passage and question.
ACT Science Test Passage Formats
understand, evaluate, and interpret information presented in graphs, tables, or charts
(approx. 15 questions)
understand, evaluate, and analyze one or more experiments
(approx. 18 questions)
understand and evaluate conflicting viewpoints, theories, or hypotheses on a specific topic
(approx. 7 questions)
Sample ACT Science Test Passage & Question
To give you a better feel for the ACT Science Test, let's take a look at a sample ACT Science passage and question.
The relationship between speed, mass, weight, and friction was studied using a toy car that carried additional masses. The car was placed on a 1m inclined plane and released. The time it took to go down the incline and the time it took to go one meter beyond the incline were recorded.
Additional masses were added to the car as it was released down the incline plane. The car has a mass of 50 g. The plane was angled at a 25 degree angle.
The incline of the plane was changed to determine its effect on the time it took the car to travel down the plane. There were no additional masses placed on the car.
How is the design of Experiment 1 different from that of Experiment 2?
Answer: In both charts, the independent variable is listed in the first column, and the dependent variables are listed in the second and third columns. In Experiment 1, the independent variable is the mass of the car. In Experiment 2, the independent variable is the angle of the plane. Choice B is the correct answer.
For additional ACT Science test sample questions, visit the ACT website.
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