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Grade 12 ACT Practice Tests

These Grade 12 ACT practice tests provide focused practice for ACT English, Math, Reading, and Science reasoning. Questions cover grammar, punctuation, rhetorical purpose, algebra, geometry, data interpretation, evidence, variables, controls, and scientific conclusions.

Skills covered

  • ACT English: sentence boundaries, punctuation, modifiers, agreement, pronouns, transitions, concision, organization, and rhetorical purpose
  • ACT Math: linear equations, systems, functions, quadratics, percentages, ratios, averages, probability, geometry, coordinates, and exponents
  • ACT Reading: central ideas, inferences, evidence, comparisons, author purpose, and qualified conclusions
  • ACT Science: experimental controls, variables, data trends, comparisons, sample limitations, and evidence-based claims

How to use these practice tests

For English, check the sentence boundary and the relationship between ideas. For Math, translate the problem into an equation and verify units. For Reading and Science, identify the evidence, comparison, control, or trend that supports the answer.

For more Grade 12 preparation, return to the College and Career Preparation category.

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Grade 12 ACT Practice Tests

Practice ACT English, Math, Reading, and Science questions covering conventions, rhetoric, algebra, geometry, data interpretation, evidence, and scientific reasoning.

Choose the best answer. Use sentence structure and rhetoric for English, equations and units for Math, passage evidence for Reading, and variables and controls for Science.

10 Questions
0/10 Questions0 %
Correct 0
Incorrect 0
Unanswered 10
1. QuestionMultiple choice

Which choice correctly punctuates the sentence? The trail was narrow ___ it was safe for experienced hikers.

Please select an answer first.

Correct answer: A

The correct answer is narrow, but.

  1. Identify the ACT skill: Determine whether the question tests English conventions, rhetoric, Math, Reading, or Science reasoning.
  2. Use the passage or model: A comma followed by but correctly joins the contrasting ideas in the sentence.
  3. Check the answer: The correct answer is narrow, but.

A comma followed by but correctly joins the contrasting ideas in the sentence.

2. QuestionMultiple choice

A car travels 180 miles in 3 hours. What is its average speed?

Please select an answer first.

Correct answer: B

The correct answer is 60 miles per hour.

  1. Identify the ACT skill: Determine whether the question tests English conventions, rhetoric, Math, Reading, or Science reasoning.
  2. Use the passage or model: Average speed equals distance divided by time: 180/3=60180/3=60 miles per hour.
  3. Check the answer: The correct answer is 60 miles per hour.

Average speed equals distance divided by time: 180/3=60180/3=60 miles per hour.

3. QuestionMultiple choice

A writer begins with a local example and then discusses a national trend. What is the most likely rhetorical purpose of the local example?

Please select an answer first.

Correct answer: C

The correct answer is To introduce a concrete case that helps readers understand the broader trend.

  1. Identify the ACT skill: Determine whether the question tests English conventions, rhetoric, Math, Reading, or Science reasoning.
  2. Use the passage or model: A specific example can make an abstract or large-scale pattern easier to understand.
  3. Check the answer: The correct answer is To introduce a concrete case that helps readers understand the broader trend.

A specific example can make an abstract or large-scale pattern easier to understand.

4. QuestionMultiple choice

A passage explains that a seed bank preserves varieties of crops that may become useful in future climates. Which choice best states the main idea?

Please select an answer first.

Correct answer: D

The correct answer is Seed banks preserve agricultural diversity that may help address future challenges..

  1. Identify the ACT skill: Determine whether the question tests English conventions, rhetoric, Math, Reading, or Science reasoning.
  2. Use the passage or model: The passage connects preservation of crop diversity with possible future agricultural needs.
  3. Check the answer: The correct answer is Seed banks preserve agricultural diversity that may help address future challenges..

The passage connects preservation of crop diversity with possible future agricultural needs.

5. QuestionMultiple choice

What is the value of 23+42^3+4?

Please select an answer first.

Correct answer: A

The correct answer is 12.

  1. Identify the ACT skill: Determine whether the question tests English conventions, rhetoric, Math, Reading, or Science reasoning.
  2. Use the passage or model: Evaluate the exponent first: 23=82^3=8, then add 4 to get 12.
  3. Check the answer: The correct answer is 12.

Evaluate the exponent first: 23=82^3=8, then add 4 to get 12.

6. QuestionMultiple choice

Which transition best completes the sentence? The sample was small. ___, the results were consistent across three trials.

Please select an answer first.

Correct answer: B

The correct answer is Nevertheless.

  1. Identify the ACT skill: Determine whether the question tests English conventions, rhetoric, Math, Reading, or Science reasoning.
  2. Use the passage or model: Nevertheless signals that the consistent results are notable despite the small sample.
  3. Check the answer: The correct answer is Nevertheless.

Nevertheless signals that the consistent results are notable despite the small sample.

7. QuestionMultiple choice

A right triangle has hypotenuse 13 and one leg 5. What is the length of the other leg?

Please select an answer first.

Correct answer: C

The correct answer is 12.

  1. Identify the ACT skill: Determine whether the question tests English conventions, rhetoric, Math, Reading, or Science reasoning.
  2. Use the passage or model: By the Pythagorean theorem, the missing leg satisfies b2=132−52=169−25=144b^2=13^2-5^2=169-25=144, so b=12b=12.
  3. Check the answer: The correct answer is 12.

By the Pythagorean theorem, the missing leg satisfies b2=132−52=169−25=144b^2=13^2-5^2=169-25=144, so b=12b=12.

8. QuestionMultiple choice

Which choice correctly completes the sentence? The results of the experiment ___ available to the public.

Please select an answer first.

Correct answer: D

The correct answer is are.

  1. Identify the ACT skill: Determine whether the question tests English conventions, rhetoric, Math, Reading, or Science reasoning.
  2. Use the passage or model: The plural subject results requires the plural verb are.
  3. Check the answer: The correct answer is are.

The plural subject results requires the plural verb are.

9. QuestionMultiple choice

A graph shows that a treatment group improved more than a control group, but the groups began with different average scores. What is a reasonable inference?

Please select an answer first.

Correct answer: A

The correct answer is The initial difference should be considered when interpreting the treatment effect..

  1. Identify the ACT skill: Determine whether the question tests English conventions, rhetoric, Math, Reading, or Science reasoning.
  2. Use the passage or model: Different starting points can affect interpretation, so the baseline difference should be considered before drawing a causal conclusion.
  3. Check the answer: The correct answer is The initial difference should be considered when interpreting the treatment effect..

Different starting points can affect interpretation, so the baseline difference should be considered before drawing a causal conclusion.

10. QuestionMultiple choice

A box contains 4 green balls and 6 yellow balls. What is the probability of selecting a green ball?

Please select an answer first.

Correct answer: B

The correct answer is 25\frac{2}{5}.

  1. Identify the ACT skill: Determine whether the question tests English conventions, rhetoric, Math, Reading, or Science reasoning.
  2. Use the passage or model: There are 4 favorable outcomes out of 10 total, so 4/104/10 simplifies to 2/52/5.
  3. Check the answer: The correct answer is 25\frac{2}{5}.

There are 4 favorable outcomes out of 10 total, so 4/104/10 simplifies to 2/52/5.

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