Which sentence correctly uses parentheses?

The results (see Table 1) were inconclusive.

The results were (see Table 1) inconclusive.

The results see (Table 1) were inconclusive.

(The results see Table 1) were inconclusive.

Which of the following best describes osmosis?

Movement of water through a selectively permeable membrane

Movement of solutes from high to low concentration

Production of proteins by ribosomes

Why do scientists revise models?

To reflect new data or understanding

Because they enjoy changing things

Which version avoids a misplaced modifier?

She served sandwiches on paper plates to the children.

She served sandwiches to the children on paper plates.

She served the children on paper plates sandwiches.

On paper plates, she served sandwiches to the children.

How does Passage C acknowledge a challenge associated with its subject?

It mentions issues with energy storage and consistency.

It states that fossil fuels are still superior.

It only describes the advantages of solar energy.

PreACT (Grade 10)

Free PreACT Practice Questions

10 sample questions for the PreACT (Grade 10), with the correct answer and an explanation for each. No account needed. Try each one before you open the answer.

Sections covered on the exam: The English Test, The Math Test, The Reading Test, The Science Test, The Writing Test.

Question 1 · The English Test
Practice Test 1 – Section 1: The English Test Section
- Solar panels convert sunlight into electricity for homes and businesses.
- The adoption of renewable energy sources has surged in recent years.
- Wind turbines harness wind power to generate clean energy.
- Governments offer incentives to encourage installation of green technologies.
Arrange the following sentences into the most coherent paragraph.
- A.2, 1, 3, 4
- B.2, 4, 1, 3
- C.2, 1, 4, 3
- D.2, 3, 1, 4
Show answer and explanation
Answer: B. 2, 4, 1, 3
Sentence 2 introduces the trend. Sentence 4 describes government action. Sentence 1 and 3 then illustrate two technologies. This order yields clear unity and logical flow.
Question 2 · The English Test
Which sentence correctly uses parentheses?
- A.The results were (see Table 1) inconclusive.
- B.The results see (Table 1) were inconclusive.
- C.(The results see Table 1) were inconclusive.
- D.The results (see Table 1) were inconclusive.
Show answer and explanation
Answer: D. The results (see Table 1) were inconclusive.
Parentheses enclose supplemental information placed immediately after the related element.
Question 3 · The Math Test
What is the perimeter of a square with side length 9 inches?
- A.81 in
- B.36 in
- C.27 in
- D.45 in
Show answer and explanation
Answer: B. 36 in
Perimeter = 4 × side = 4 × 9 = 36 in
Question 4 · The Science Test
Which of the following best describes osmosis?
- A.Movement of water through a selectively permeable membrane
- B.Active transport of glucose
- C.Movement of solutes from high to low concentration
- D.Production of proteins by ribosomes
Show answer and explanation
Answer: A. Movement of water through a selectively permeable membrane
Osmosis refers specifically to water moving through a membrane from low to high solute concentration.
Question 5 · The Science Test
Why do scientists revise models?
- A.To make them more decorative
- B.Because they enjoy changing things
- C.To reflect new data or understanding
- D.To sell them to schools
Show answer and explanation
Answer: C. To reflect new data or understanding
Scientific models are revised to align with updated evidence or discoveries.
Question 6 · The Writing Test
Which phrase would be most appropriate to signal a conclusion?
- A.First of all,
- B.For instance,
- C.In conclusion,
- D.On the other hand,
Show answer and explanation
Answer: C. In conclusion,
“In conclusion” signals that the essay is ending and ideas are being wrapped up.
Question 7 · The English Test
Which version avoids a misplaced modifier?
- A.She served sandwiches to the children on paper plates.
- B.She served the children on paper plates sandwiches.
- C.She served sandwiches on paper plates to the children.
- D.On paper plates, she served sandwiches to the children.
Show answer and explanation
Answer: C. She served sandwiches on paper plates to the children.
This placement clearly shows the sandwiches—not the children—are on the plates.
Question 8 · The Math Test
What is the area of a triangle with base = 10 cm and height = 4 cm?
- A.20 cm²
- B.40 cm²
- C.10 cm²
- D.15 cm²
Show answer and explanation
Answer: A. 20 cm²
A = 1/2 × base × height = 1/2 × 10 × 4 = 20 cm²
Question 9 · The Reading Test
How does Passage C acknowledge a challenge associated with its subject?
- A.It states that fossil fuels are still superior.
- B.It avoids discussing costs.
- C.It mentions issues with energy storage and consistency.
- D.It only describes the advantages of solar energy.
Show answer and explanation
Answer: C. It mentions issues with energy storage and consistency.
Passage C recognizes limitations in renewable energy related to storage and power consistency.
Question 10 · The Science Test
Use the table below to answer Questions 173–174.
Day Temperature (°F)
Mon 70
Tue 68
Wed 71
Thu 75
Fri 73
What is the average temperature for the week?
- A.70.4°F
- B.71.4°F
- C.72.5°F
- D.73.2°F
Show answer and explanation
Answer: B. 71.4°F
(70 + 68 + 71 + 75 + 73) ÷ 5 = 357 ÷ 5 = 71.4°F

Day	Temperature (°F)
Mon	70
Tue	68
Wed	71
Thu	75
Fri	73

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