ACT Science Practice Questions and Test Tips

Relax. Proper ACT science practice will help you close any gaps in your science knowledge.
The ACT Science test consists of 40 questions and lasts 35 minutes. The test measures your interpretation, analysis, evaluation, reasoning and problem solving skills related to the natural sciences.
Quite simply, seven sets of scientific information will be presented, and each will be followed by a series of multiple choice questions.
The Three Formats for Scientific Information
- Data Representation (tables, graphs, etc.)
- Research Summaries (descriptions of several related experiments)
- Conflicting Viewpoints (expressions of several related hypotheses or views which are inconsistent with one another)
Science Test Tips
- Pace yourself – There are 40 ACT science questions to be answered in 35 minutes. Ideally, spend about 30 seconds on each question; this gives you ample time to review your work and return to more difficult questions.
- Read carefully – Before reading the questions, make sure you read the scientific material. It’s perfectly fine to jot down important notes and ideas on the test booklet or provided scratch paper.
- Opposing viewpoints – Some questions present you with multiple viewpoints, and ask for you to distinguish among these different viewpoints. It is very helpful to jot down short notes about each viewpoint, so you can easily look back and compare.
The Three Formats for the ACT Scientific Information
- Data Representation (38%) – Replicates content which would likely appear in science journals and texts. Skills involved for these questions include graph analyzation, scatter-plot interpretations, and interpretation of tabular data.
- Research Summaries (45%) – These question focus on the design of experiments and the interpretation of experimental results.
- Conflicting Viewpoints (17%) – These questions represent different expressions which are inconsistent with one another. These questions focus on the understanding, analysis, and comparison of alternate viewpoints or hypotheses.
Science Quiz
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Question 1 of 5
1. Question
Correct
15%
50%25%
75%
Incorrect
15%
50%25%
75%
Hint
15%
50%25%
75%
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Question 2 of 5
2. Question
Which of the following terms describes the division of cells?
Correct
Meiosis
Molarity
Mitosis
None of the above
Incorrect
Meiosis
Molarity
Mitosis
None of the above
Hint
Meiosis
Molarity
Mitosis
None of the above
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Question 3 of 5
3. Question
Scientists discovered a new species of shark. According to this graph, what is the relationship between age and weight?
Correct
As age decreases, weight decreases
As age increases, weight increases
As age increases, weight decreases
There is no relationship.
Incorrect
As age decreases, weight decreases
As age increases, weight increases
As age increases, weight decreases
There is no relationship.
Hint
As age decreases, weight decreases
As age increases, weight increases
As age increases, weight decreases
There is no relationship.
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Question 4 of 5
4. Question
A study was done on the relationship between where a person lives and the amount of leisure time that they have in a year.
According to the table above, what is the total leisure time for the major cities only?
Correct
a.) 300
b.) 550
c.)250
d.) 175
Incorrect
a.) 300
b.) 550
c.)250
d.) 175
Hint
a.) 300
b.) 550
c.)250
d.) 175
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Question 5 of 5
5. Question
A scientist wants to test the amount of rust on different metals.
Time: 48 hours
Metals: steel, copper, aluminum
Amount of rust solution added to metals: 45 mm
What are the controls in this experiment?
Correct
a.) The type of metal
b.) Time and amount of rust solution
c.) The amount of rust
d.) There is no control.
Incorrect
a.) The type of metal
b.) Time and amount of rust solution
c.) The amount of rust
d.) There is no control.
Hint
a.) The type of metal
b.) Time and amount of rust solution
c.) The amount of rust
d.) There is no control.