ACT Science Practice Quiz — 20 Free Sample Questions
The ACT Science section tests your ability to analyze scientific information, interpret data, and draw conclusions from experiments. This section challenges students to apply scientific reasoning across biology, chemistry, physics, and earth sciences. Our quiz helps you master data interpretation and scientific problem-solving strategies.
In an experiment, the variable that is changed is called the:
About the ACT Science
The ACT Science section consists of 40 questions in 6-7 passages with 35 minutes to complete the section. Unlike traditional science exams testing memorized knowledge, the ACT Science section emphasizes analyzing scientific data, interpreting graphs and tables, and understanding experimental design. The section includes three passage types: data representation (presenting information in tables, graphs, and figures), research summaries (presenting multiple related experiments with results and conclusions), and conflicting viewpoints (presenting contrasting scientific theories or hypotheses). Students must interpret visual representations, evaluate experimental designs, identify variables, predict outcomes, and compare scientific perspectives. The average score is approximately 20 out of 36, with top universities typically requiring scores of 30 or higher. Preparation requires 20-40 hours emphasizing graph interpretation skills, understanding experimental methodology, and developing efficient reading strategies. Success depends on quickly extracting information from visual data, understanding how experiments work, and practicing with authentic ACT Science passages.
Frequently Asked Questions
Is science knowledge required for ACT Science?
The ACT Science section emphasizes data interpretation over memorized knowledge. While basic science understanding helps, the focus is on analyzing provided information.
How many passages are on the ACT Science section?
There are typically 6-7 passages with approximately 40 total questions. Passages include data representation, research summaries, and conflicting viewpoints.
What is the time limit?
You have 35 minutes to complete the entire Science section of approximately 40 questions.