NumicornNumicornLearn, solve, progress

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.

Select a test

5 Tests
1. Test2. Test3. Test4. Test5. Test

5. 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 correctly fixes the sentence boundary? The telescope was small it produced detailed images.

Please select an answer first.

Correct answer: A

The correct answer is The telescope was small, but it produced detailed images..

  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 and coordinating conjunction correctly join the two independent clauses and show contrast.
  3. Check the answer: The correct answer is The telescope was small, but it produced detailed images..

A comma and coordinating conjunction correctly join the two independent clauses and show contrast.

2. QuestionMultiple choice

A quantity decreases from 80 to 60. What is the percent decrease?

Please select an answer first.

Correct answer: B

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 decrease is 20. Dividing by the original 80 gives 20/80=0.2520/80=0.25, or 25%.
  3. Check the answer: The correct answer is 25%.

The decrease is 20. Dividing by the original 80 gives 20/80=0.2520/80=0.25, or 25%.

3. QuestionMultiple choice

Which choice correctly punctuates the list? The project required three resources ___ time, funding, and volunteers.

Please select an answer first.

Correct answer: C

The correct answer is resources: time, funding, and volunteers.

  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 of the three resources.
  3. Check the answer: The correct answer is resources: time, funding, and volunteers.

A colon correctly introduces the list of the three resources.

4. QuestionMultiple choice

A passage compares two methods for filtering water and concludes that the less expensive method works well for small communities. Which choice best states the central idea?

Please select an answer first.

Correct answer: D

The correct answer is The less expensive method may be especially useful when community scale and cost matter..

  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 conclusion qualifies the method’s usefulness by connecting performance with community size and cost.
  3. Check the answer: The correct answer is The less expensive method may be especially useful when community scale and cost matter..

The conclusion qualifies the method’s usefulness by connecting performance with community size and cost.

5. QuestionMultiple choice

A recipe uses 3 cups of flour for every 2 cups of milk. How many cups of flour are needed for 8 cups of milk?

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: The ratio is 3/23/2. For 8 cups of milk, multiply by 4: 3(4)=123(4)=12 cups of flour.
  3. Check the answer: The correct answer is 12.

The ratio is 3/23/2. For 8 cups of milk, multiply by 4: 3(4)=123(4)=12 cups of flour.

6. QuestionMultiple choice

Which transition best completes the sentence? The device is compact. ___, it can process large data sets.

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 the surprising contrast between the device’s small size and its processing capacity.
  3. Check the answer: The correct answer is Nevertheless.

Nevertheless signals the surprising contrast between the device’s small size and its processing capacity.

7. QuestionMultiple choice

What is the distance between (1,2)(1,2) and (4,6)(4,6)?

Please select an answer first.

Correct answer: C

The correct answer is 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: The distance is (4−1)2+(6−2)2=9+16=5\sqrt{(4-1)^2+(6-2)^2}=\sqrt{9+16}=5.
  3. Check the answer: The correct answer is 5.

The distance is (4−1)2+(6−2)2=9+16=5\sqrt{(4-1)^2+(6-2)^2}=\sqrt{9+16}=5.

8. QuestionMultiple choice

Which choice correctly completes the sentence? The collection of samples ___ stored in a refrigerated room.

Please select an answer first.

Correct answer: D

The correct answer is is.

  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 collection takes the singular verb is.
  3. Check the answer: The correct answer is is.

The singular subject collection takes the singular verb is.

9. QuestionMultiple choice

A science passage states that a control group received no fertilizer while the experimental group received fertilizer. Which evidence would best support the claim that fertilizer increased growth?

Please select an answer first.

Correct answer: A

The correct answer is The experimental group had greater average growth than the control group under the same conditions..

  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 comparison under the same conditions with different growth outcomes directly supports the claim.
  3. Check the answer: The correct answer is The experimental group had greater average growth than the control group under the same conditions..

A comparison under the same conditions with different growth outcomes directly supports the claim.

10. QuestionMultiple choice

If h(x)=2x2+1h(x)=2x^2+1, what is h(2)h(2)?

Please select an answer first.

Correct answer: B

The correct answer is 9.

  1. Identify the ACT skill: Determine whether the question tests English conventions, rhetoric, Math, Reading, or Science reasoning.
  2. Use the passage or model: Substitute 2: h(2)=2(22)+1=2(4)+1=9h(2)=2(2^2)+1=2(4)+1=9.
  3. Check the answer: The correct answer is 9.

Substitute 2: h(2)=2(22)+1=2(4)+1=9h(2)=2(2^2)+1=2(4)+1=9.

Previous testNext test