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Study Guide: ACT Science ACT vs SAT ACT Science Section No Equivalent on SAT
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ACT Science ACT vs SAT ACT Science Section No Equivalent on SAT

By Fatskills Exam Guides Team — the exam nerds behind 28,500+ quizzes and 2.1M practice questions across 500+ global exams.

⏱️ ~5 min read

ACT vs SAT — ACT Science Section: No Equivalent on SAT

The ACT Science section is a unique and challenging part of the test. Unlike the SAT, which has a separate Evidence-Based Reading and Writing section, the ACT combines reading and science skills in this section. As a result, students often struggle to understand the format and content of the ACT Science section. In this guide, we'll break down the key concepts, strategies, and tips to help you master this section.

What This Is and Why It Matters for the ACT

The ACT Science section appears in every ACT test and typically takes around 35 minutes to complete. It consists of 40 questions that test your ability to analyze and interpret scientific data, research summaries, and conflicting viewpoints. The section is designed to assess your ability to think critically and make informed decisions based on scientific evidence.

Key Concepts (What You Must Know)

  • Scientific literacy: Understanding the basics of scientific concepts, such as variables, hypotheses, and experimental design.
  • Data interpretation: Analyzing and interpreting graphs, charts, and tables to extract relevant information.
  • Research summaries: Understanding the main points and key findings of scientific research studies.
  • Conflicting viewpoints: Identifying and evaluating the strengths and weaknesses of different scientific perspectives.

Step-by-Step Strategy for This Topic

  1. Read the passage carefully: Take your time to read the passage and understand the main points and key findings.
  2. Identify the question type: Determine the type of question being asked (e.g., data interpretation, research summary, or conflicting viewpoints).
  3. Analyze the data: Examine the graphs, charts, and tables to extract relevant information and identify patterns.
  4. Eliminate incorrect answers: Use the process of elimination to eliminate answer choices that are clearly incorrect.
  5. Choose the best answer: Select the answer choice that best addresses the question.
  6. Verify your answer: Double-check your answer to ensure it is correct.

How It’s Tested on the ACT

The ACT Science section typically consists of 40 questions that are divided into 4-6 passages. Each passage includes a research summary, data representation, or conflicting viewpoints. The questions may ask you to:


  • Identify the main point of a research study
  • Analyze and interpret data from a graph or chart
  • Evaluate the strengths and weaknesses of different scientific perspectives
  • Identify the variables and hypotheses in an experiment

Common Mistakes & Exam Traps

  • ⚠️ The mistake: Failing to read the passage carefully and understand the main points and key findings.
  • Why it happens: Rushing through the passage and not taking the time to understand the content.
  • How to avoid it: Take your time to read the passage carefully and make sure you understand the main points and key findings.
  • Exam board insight: The examiners want to see that you have a clear understanding of the scientific concepts and data presented in the passage.

  • The mistake: Failing to analyze the data and identify patterns.

  • Why it happens: Not taking the time to examine the graphs, charts, and tables carefully.
  • How to avoid it: Take your time to analyze the data and identify patterns.
  • Exam board insight: The examiners want to see that you can extract relevant information from the data.

  • The mistake: Failing to evaluate the strengths and weaknesses of different scientific perspectives.

  • Why it happens: Not taking the time to read and understand the conflicting viewpoints.
  • How to avoid it: Take your time to read and understand the conflicting viewpoints and evaluate the strengths and weaknesses of each perspective.
  • Exam board insight: The examiners want to see that you can think critically and make informed decisions based on scientific evidence.

Practice Questions (3-5 questions)

Question 1

A researcher conducted an experiment to investigate the effect of light on plant growth. The results are shown in the graph below.

[Graph: Plant growth vs. light intensity]

Options: A, B, C, D, E

Answer: D

Explanation: The graph shows a positive correlation between light intensity and plant growth. The researcher can conclude that increasing light intensity leads to increased plant growth.

Question 2

A study was conducted to investigate the effect of exercise on heart rate. The results are shown in the table below.

[Table: Heart rate vs. exercise duration]

Options: A, B, C, D, E

Answer: C

Explanation: The table shows a positive correlation between exercise duration and heart rate. The researcher can conclude that increasing exercise duration leads to increased heart rate.

Question 3

A researcher conducted a study to investigate the effect of temperature on enzyme activity. The results are shown in the graph below.

[Graph: Enzyme activity vs. temperature]

Options: A, B, C, D, E

Answer: A

Explanation: The graph shows a negative correlation between temperature and enzyme activity. The researcher can conclude that increasing temperature leads to decreased enzyme activity.

Quick Reference Card (60-Second Summary)

  • Scientific literacy: Understanding the basics of scientific concepts, such as variables, hypotheses, and experimental design.
  • Data interpretation: Analyzing and interpreting graphs, charts, and tables to extract relevant information.
  • Research summaries: Understanding the main points and key findings of scientific research studies.
  • Conflicting viewpoints: Identifying and evaluating the strengths and weaknesses of different scientific perspectives.
  • Graph and chart reading: Understanding the types of graphs and charts used in scientific research and how to interpret them.
  • Time management: Allocating sufficient time to read the passage and analyze the data.

If You Get Stuck on Test Day

  • What to do when you don't know the answer: Eliminate incorrect answer choices and make an educated guess.
  • Pacing strategy: Allocate sufficient time to read the passage and analyze the data.
  • When to skip and come back: If you're stuck on a question, skip it and come back to it later.

Related ACT Topics

  • Reading Comprehension: Understanding the main points and key findings of scientific research studies.
  • Data Interpretation: Analyzing and interpreting graphs, charts, and tables to extract relevant information.
  • Scientific Literacy: Understanding the basics of scientific concepts, such as variables, hypotheses, and experimental design.


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