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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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1. Test

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 most effectively combines the sentences? The museum opened a new exhibit. The exhibit features local artists.

Please select an answer first.

Correct answer: A

The correct answer is The museum opened a new exhibit featuring local artists..

  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 participial phrase featuring local artists concisely connects the exhibit with its content without creating a sentence boundary error.
  3. Check the answer: The correct answer is The museum opened a new exhibit featuring local artists..

The participial phrase featuring local artists concisely connects the exhibit with its content without creating a sentence boundary error.

2. QuestionMultiple choice

A line passes through 2,52,5 and 6,136,13. What is the slope of the line?

Please select an answer first.

Correct answer: B

The correct answer is 2.

  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 slope is 13−56−2=84=2\frac{13-5}{6-2}=\frac{8}{4}=2.
  3. Check the answer: The correct answer is 2.

The slope is 13−56−2=84=2\frac{13-5}{6-2}=\frac{8}{4}=2.

3. QuestionMultiple choice

Which choice correctly punctuates the sentence? The researchers recorded three measurements ___ temperature, pressure, and humidity.

Please select an answer first.

Correct answer: C

The correct answer is measurements: temperature, pressure, and humidity.

  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 colon correctly introduces the list that explains the three measurements.
  3. Check the answer: The correct answer is measurements: temperature, pressure, and humidity.

A colon correctly introduces the list that explains the three measurements.

4. QuestionMultiple choice

A passage explains that a town restored a riverbank, added walking paths, and planted native vegetation. Which choice best states the passage’s main idea?

Please select an answer first.

Correct answer: D

The correct answer is The town used several improvements to make the riverbank more useful and resilient..

  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 three actions together show a broad restoration effort rather than a single isolated improvement.
  3. Check the answer: The correct answer is The town used several improvements to make the riverbank more useful and resilient..

The three actions together show a broad restoration effort rather than a single isolated improvement.

5. QuestionMultiple choice

A price increases from $40 to $50. What is the percent increase?

Please select an answer first.

Correct answer: A

The correct answer is 25%.

  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 increase is $10. Dividing by the original $40 gives 10/40=0.2510/40=0.25, or 25%.
  3. Check the answer: The correct answer is 25%.

The increase is $10. Dividing by the original $40 gives 10/40=0.2510/40=0.25, or 25%.

6. QuestionMultiple choice

Which transition best completes the sentence? The first design was inexpensive. ___, it required frequent repairs.

Please select an answer first.

Correct answer: B

The correct answer is However.

  1. Identify the ACT skill: Determine whether the question tests English conventions, rhetoric, Math, Reading, or Science reasoning.
  2. Use the passage or model: However signals the contrast between the low price and the need for frequent repairs.
  3. Check the answer: The correct answer is However.

However signals the contrast between the low price and the need for frequent repairs.

7. QuestionMultiple choice

What are the solutions to x2−7x+12=0x^2-7x+12=0?

Please select an answer first.

Correct answer: C

The correct answer is x=3x=3 and x=4x=4.

  1. Identify the ACT skill: Determine whether the question tests English conventions, rhetoric, Math, Reading, or Science reasoning.
  2. Use the passage or model: Factor the expression as (x−3)(x−4)=0(x-3)(x-4)=0, so the solutions are 3 and 4.
  3. Check the answer: The correct answer is x=3x=3 and x=4x=4.

Factor the expression as (x−3)(x−4)=0(x-3)(x-4)=0, so the solutions are 3 and 4.

8. QuestionMultiple choice

Which choice correctly completes the sentence? A series of careful experiments ___ the researchers’ original hypothesis.

Please select an answer first.

Correct answer: D

The correct answer is challenged.

  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 singular subject series takes the singular past-tense verb challenged in this sentence.
  3. Check the answer: The correct answer is challenged.

The singular subject series takes the singular past-tense verb challenged in this sentence.

9. QuestionMultiple choice

A study finds that a plant grows taller in brighter light, but only when it receives enough water. What can be inferred?

Please select an answer first.

Correct answer: A

The correct answer is The effect of light on growth depends partly on water availability..

  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 condition about water shows that the relationship between light and growth is not independent of water availability.
  3. Check the answer: The correct answer is The effect of light on growth depends partly on water availability..

The condition about water shows that the relationship between light and growth is not independent of water availability.

10. QuestionMultiple choice

A rectangle has length 9 and width 4. What is its perimeter?

Please select an answer first.

Correct answer: B

The correct answer is 26.

  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 perimeter is 2l+2w=2(9)+2(4)=262l+2w=2(9)+2(4)=26.
  3. Check the answer: The correct answer is 26.

The perimeter is 2l+2w=2(9)+2(4)=262l+2w=2(9)+2(4)=26.

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