ACT Reading Natural Science Cause and Effect Scientific Relationships in Text

What This Is and Why It Matters for the ACT

Cause and Effect: Scientific Relationships in Text appears in the Science section of the ACT. This topic is crucial, as it makes up a significant portion of the Science test. You'll encounter questions that require you to identify cause-and-effect relationships, analyze data, and understand scientific concepts. Be prepared to tackle these questions with ease.

Key Concepts (What You Must Know)

• Definition: Cause-and-effect relationships are connections between events, actions, or conditions that lead to a specific outcome.
• Key vocabulary:
  • Causality: The relationship between a cause and its effect.
  • Correlation: A connection between two variables that may or may not imply causality.
• Scientific concepts:
  • Variables: Factors that can be changed or measured in an experiment.
  • Constants: Factors that remain unchanged in an experiment.

Step-by-Step Strategy for This Topic

1. Read the passage carefully: Identify the main topic and any key terms or concepts.
2. Understand the question: Determine what the question is asking and what type of relationship is being described (cause-and-effect, correlation, etc.).
3. Identify the variables: Determine which factors are being changed or measured and which are remaining constant.
4. Analyze the data: Look for patterns, trends, or correlations between the variables.
5. Check your work: Verify that your answer makes sense in the context of the passage and the question.
6. Manage your time: Allocate approximately 2-3 minutes per question, depending on the complexity.

How It’s Tested on the ACT

The Science section of the ACT tests your ability to analyze scientific data, identify cause-and-effect relationships, and understand scientific concepts. You'll encounter a variety of question types, including:

• Data representation: Graphs, charts, and tables that require you to identify patterns or relationships.
• Research summaries: Passages that summarize scientific research or experiments.
• Conflicting viewpoints: Passages that present different perspectives on a scientific topic.

Common distractors include:

• Misreading the data: Failing to accurately interpret the data or graphs.
• Misunderstanding the question: Failing to clearly understand what the question is asking.
• Overlooking key information: Failing to notice important details in the passage or data.

Common Mistakes & Exam Traps

1. The mistake: Failing to identify the variables in an experiment.
   Why it happens: Rushing through the passage or not carefully reading the question.
   How to avoid it: Take your time and carefully read the passage and question.
2. The mistake: Misinterpreting the data or graphs.
   Why it happens: Failing to accurately read the data or not understanding the question.
   How to avoid it: Carefully read the data and question, and verify your answer.
3. The mistake: Failing to understand the scientific concept or principle.
   Why it happens: Not carefully reading the passage or not understanding the question.
   How to avoid it: Carefully read the passage and question, and verify your answer.
4. The mistake: Failing to identify the cause-and-effect relationship.
   Why it happens: Not carefully reading the passage or not understanding the question.
   How to avoid it: Carefully read the passage and question, and verify your answer.
5. The mistake: Failing to manage time effectively.
   Why it happens: Not allocating enough time for each question or not pacing oneself.
   How to avoid it: Allocate approximately 2-3 minutes per question, and pace yourself.

Practice Questions (3-5 questions)

Question 1:
A study found that students who exercised regularly had higher GPAs than those who did not. Which of the following is a likely cause of this effect?

A) Regular exercise improves cognitive function.
B) Students who exercise regularly are more motivated.
C) Students who have higher GPAs are more likely to exercise regularly.
D) Regular exercise has no effect on GPA.
E) Regular exercise has a negative effect on GPA.

Answer: A) Regular exercise improves cognitive function.

Explanation: The study found a correlation between regular exercise and higher GPAs. A likely cause of this effect is that regular exercise improves cognitive function, which in turn leads to higher GPAs.

Question 2:
A graph shows that the temperature of a substance increases as the amount of heat added increases. Which of the following is a likely cause of this effect?

A) The substance is a good conductor of heat.
B) The substance is a poor conductor of heat.
C) The amount of heat added is directly proportional to the temperature increase.
D) The amount of heat added is inversely proportional to the temperature increase.
E) The substance is not affected by heat.

Answer: C) The amount of heat added is directly proportional to the temperature increase.

Explanation: The graph shows a direct relationship between the amount of heat added and the temperature increase. A likely cause of this effect is that the amount of heat added is directly proportional to the temperature increase.

Question 3:
A study found that students who used a specific type of software had higher test scores than those who did not. Which of the following is a likely cause of this effect?

A) The software improves cognitive function.
B) Students who use the software are more motivated.
C) Students who have higher test scores are more likely to use the software.
D) The software has no effect on test scores.
E) The software has a negative effect on test scores.

Answer: A) The software improves cognitive function.

Explanation: The study found a correlation between using the software and higher test scores. A likely cause of this effect is that the software improves cognitive function, which in turn leads to higher test scores.

Quick Reference Card (60-Second Summary)

• Variables: Factors that can be changed or measured in an experiment.
• Constants: Factors that remain unchanged in an experiment.
• Causality: The relationship between a cause and its effect.
• Correlation: A connection between two variables that may or may not imply causality.
• Regular exercise improves cognitive function: A likely cause of higher GPAs.
• Direct proportionality: A relationship between two variables where one variable increases as the other increases.

If You Get Stuck on Test Day

• Don't panic: Take a deep breath and read the question carefully.
• Eliminate answer choices: Get rid of any answer choices that are clearly incorrect.
• Make an educated guess: Choose an answer choice that seems plausible based on the information in the passage.
• Manage your time: Allocate approximately 2-3 minutes per question, and pace yourself.

Related ACT Topics

• Scientific Research: Understanding the methods and results of scientific research.
• Graphs and Charts: Interpreting and analyzing data presented in graphs and charts.
• Data Analysis: Identifying patterns and relationships in data.