Test Prep ACT Section Four: Science Reasoning ACT Section 4: Science Reasoning Dumps in PDF

Free Test Prep ACT Section 4: Science Reasoning Real Questions (page: 21)

DIRECTIONS: In the passage below, certain phrases are underlined and numbered <x>. The question will present alternatives for the underlined part. In most cases, you are to choose the one that best expresses the idea, makes the statement appropriate for standard written English, or is worded most consistently with the style and tone of the passage as a whole. If you think the original version is the best, choose "NO CHANGE".

Haiti

[§1] Although my friends and family were skeptical of whether <1> I would be safe, I boarded the plane in New York boldly <2> and flew to Haiti. My college roommate had agreed to take medical supplies to a rural clinic where his brother was a physician, and I agreed to go and help.

[§2] When me and my roommate <3> landed at the airport in the capital Port au Prince, the chaos inside the airport was frightening. Dozens of men approached us while gesturing to our luggage, and yelling at us in Creole. They wanted us to select their taxis. I was thrilled <4> when my roommate smiled at someone who called our names through the crowd.

[§3] Papi, our designated transporter, was a Haitian man in his early twenties who works <5> for the physician. He warmly welcomed us to his country, and seemed to have a great sense of humor. <6> He laughed nonstop during our ride through the capital city. Once we were on the open highway, Papi taught us basic Creole greetings to pass the time during our excessively long four-hour commute. <7>

[§4] The mountainous town where we would spend the week was beautiful, and I immediately fell in love with the place and its people. The views rocked! <8> Even though I could not fluently speak Creole, I made the most of my time with the land and its inhabitants. Several daily tasks kept me busy that week. The medical clinic was a modest two-room building, and their <9> staff needed help reorganizing the supply pantry. I removed, counted, sorted, and restocked supplies, <10> before adding the additional resources we brought from the United States. After I cleaned and organized the supply pantry, I assisted a visiting nutritionist with distributing vitamins to the locals. <11>

[§5] Each evening, two dozen young children would sit on the porch where my roommate and I stayed. They laughed constantly, they <12> always found joy in the simplest of things. They did teach <13> us to count in Creole and read children's stories to us in French. They invited us to kick balls with them and chase yard chickens. Even though they did not have many toys, the children entertained one another with conversation, laughter and storytelling.

[§6] When it was time to leave Haiti and return to New York, I was sad to say goodbye. Although my roommate and I delivered medical supplies to their community, the people gave us memories that will last the rest of our lives. <14>

If the writer wanted to add an additional sentence to the end of paragraph 4 <11>, its content would logically:

  1. provide details about the nutritionist
  2. contain information about appropriate vitamin intake for adults
  3. include another task that was performed during that week
  4. mention the physician's gratitude at the help that the writer provided

Answer(s): C

Explanation:

C is the correct answer because of purpose. The passage contains information about how the writer spent his time in Haiti. A, B, and D are incorrect because the answers do not fit with the purpose of the passage.



DIRECTIONS: In the passage below, certain phrases are underlined and numbered <x>. The question will present alternatives for the underlined part. In most cases, you are to choose the one that best expresses the idea, makes the statement appropriate for standard written English, or is worded most consistently with the style and tone of the passage as a whole. If you think the original version is the best, choose "NO CHANGE".

Haiti

[§1] Although my friends and family were skeptical of whether <1> I would be safe, I boarded the plane in New York boldly <2> and flew to Haiti. My college roommate had agreed to take medical supplies to a rural clinic where his brother was a physician, and I agreed to go and help.

[§2] When me and my roommate <3> landed at the airport in the capital Port au Prince, the chaos inside the airport was frightening. Dozens of men approached us while gesturing to our luggage, and yelling at us in Creole. They wanted us to select their taxis. I was thrilled <4> when my roommate smiled at someone who called our names through the crowd.

[§3] Papi, our designated transporter, was a Haitian man in his early twenties who works <5> for the physician. He warmly welcomed us to his country, and seemed to have a great sense of humor. <6> He laughed nonstop during our ride through the capital city. Once we were on the open highway, Papi taught us basic Creole greetings to pass the time during our excessively long four-hour commute. <7>

[§4] The mountainous town where we would spend the week was beautiful, and I immediately fell in love with the place and its people. The views rocked! <8> Even though I could not fluently speak Creole, I made the most of my time with the land and its inhabitants. Several daily tasks kept me busy that week. The medical clinic was a modest two-room building, and their <9> staff needed help reorganizing the supply pantry. I removed, counted, sorted, and restocked supplies, <10> before adding the additional resources we brought from the United States. After I cleaned and organized the supply pantry, I assisted a visiting nutritionist with distributing vitamins to the locals. <11>

[§5] Each evening, two dozen young children would sit on the porch where my roommate and I stayed. They laughed constantly, they <12> always found joy in the simplest of things. They did teach <13> us to count in Creole and read children's stories to us in French. They invited us to kick balls with them and chase yard chickens. Even though they did not have many toys, the children entertained one another with conversation, laughter and storytelling.

[§6] When it was time to leave Haiti and return to New York, I was sad to say goodbye. Although my roommate and I delivered medical supplies to their community, the people gave us memories that will last the rest of our lives. <14>

<12>:

  1. NO CHANGE
  2. constantly; they
  3. constantly: they
  4. constantly they

Answer(s): B

Explanation:

B is the correct answer because of semicolons. Semicolons separate two independent clauses, which this sentence contains. A and C are incorrect because the answers contain inaccurate punctuation marks. D is incorrect because it needs a semicolon.



DIRECTIONS: In the passage below, certain phrases are underlined and numbered <x>. The question will present alternatives for the underlined part. In most cases, you are to choose the one that best expresses the idea, makes the statement appropriate for standard written English, or is worded most consistently with the style and tone of the passage as a whole. If you think the original version is the best, choose "NO CHANGE".

Haiti

[§1] Although my friends and family were skeptical of whether <1> I would be safe, I boarded the plane in New York boldly <2> and flew to Haiti. My college roommate had agreed to take medical supplies to a rural clinic where his brother was a physician, and I agreed to go and help.

[§2] When me and my roommate <3> landed at the airport in the capital Port au Prince, the chaos inside the airport was frightening. Dozens of men approached us while gesturing to our luggage, and yelling at us in Creole. They wanted us to select their taxis. I was thrilled <4> when my roommate smiled at someone who called our names through the crowd.

[§3] Papi, our designated transporter, was a Haitian man in his early twenties who works <5> for the physician. He warmly welcomed us to his country, and seemed to have a great sense of humor. <6> He laughed nonstop during our ride through the capital city. Once we were on the open highway, Papi taught us basic Creole greetings to pass the time during our excessively long four-hour commute. <7>

[§4] The mountainous town where we would spend the week was beautiful, and I immediately fell in love with the place and its people. The views rocked! <8> Even though I could not fluently speak Creole, I made the most of my time with the land and its inhabitants. Several daily tasks kept me busy that week. The medical clinic was a modest two-room building, and their <9> staff needed help reorganizing the supply pantry. I removed, counted, sorted, and restocked supplies, <10> before adding the additional resources we brought from the United States. After I cleaned and organized the supply pantry, I assisted a visiting nutritionist with distributing vitamins to the locals. <11>

[§5] Each evening, two dozen young children would sit on the porch where my roommate and I stayed. They laughed constantly, they <12> always found joy in the simplest of things. They did teach <13> us to count in Creole and read children's stories to us in French. They invited us to kick balls with them and chase yard chickens. Even though they did not have many toys, the children entertained one another with conversation, laughter and storytelling.

[§6] When it was time to leave Haiti and return to New York, I was sad to say goodbye. Although my roommate and I delivered medical supplies to their community, the people gave us memories that will last the rest of our lives. <14>

<13>:

  1. NO CHANGE
  2. taught
  3. teached
  4. had been teaching

Answer(s): B

Explanation:

B is the correct answer because of irregular verbs. "Teach" is an irregular verb that requires "taught" as the simple past tense verb. A, C, and D are incorrect because the answers are the inaccurate past tense form of "teach."



DIRECTIONS: In the passage below, certain phrases are underlined and numbered <x>. The question will present alternatives for the underlined part. In most cases, you are to choose the one that best expresses the idea, makes the statement appropriate for standard written English, or is worded most consistently with the style and tone of the passage as a whole. If you think the original version is the best, choose "NO CHANGE".

Haiti

[§1] Although my friends and family were skeptical of whether <1> I would be safe, I boarded the plane in New York boldly <2> and flew to Haiti. My college roommate had agreed to take medical supplies to a rural clinic where his brother was a physician, and I agreed to go and help.

[§2] When me and my roommate <3> landed at the airport in the capital Port au Prince, the chaos inside the airport was frightening. Dozens of men approached us while gesturing to our luggage, and yelling at us in Creole. They wanted us to select their taxis. I was thrilled <4> when my roommate smiled at someone who called our names through the crowd.

[§3] Papi, our designated transporter, was a Haitian man in his early twenties who works <5> for the physician. He warmly welcomed us to his country, and seemed to have a great sense of humor. <6> He laughed nonstop during our ride through the capital city. Once we were on the open highway, Papi taught us basic Creole greetings to pass the time during our excessively long four-hour commute. <7>

[§4] The mountainous town where we would spend the week was beautiful, and I immediately fell in love with the place and its people. The views rocked! <8> Even though I could not fluently speak Creole, I made the most of my time with the land and its inhabitants. Several daily tasks kept me busy that week. The medical clinic was a modest two-room building, and their <9> staff needed help reorganizing the supply pantry. I removed, counted, sorted, and restocked supplies, <10> before adding the additional resources we brought from the United States. After I cleaned and organized the supply pantry, I assisted a visiting nutritionist with distributing vitamins to the locals. <11>

[§5] Each evening, two dozen young children would sit on the porch where my roommate and I stayed. They laughed constantly, they <12> always found joy in the simplest of things. They did teach <13> us to count in Creole and read children's stories to us in French. They invited us to kick balls with them and chase yard chickens. Even though they did not have many toys, the children entertained one another with conversation, laughter and storytelling.

[§6] When it was time to leave Haiti and return to New York, I was sad to say goodbye. Although my roommate and I delivered medical supplies to their community, the people gave us memories that will last the rest of our lives. <14>

Which choice most effectively concludes the sentence and the essay? <14>

  1. NO CHANGE
  2. were glad to see us leave.
  3. were thankful that we came.
  4. gave us money to help offset costs from the trip.

Answer(s): A

Explanation:

A is the correct answer because of context. B, C, and D do not fit with the context of the sentence, nor the expressed sentiments by the writer about his time in Haiti.



DIRECTIONS: In the passage below, certain phrases are underlined and numbered <x>. The question will present alternatives for the underlined part. In most cases, you are to choose the one that best expresses the idea, makes the statement appropriate for standard written English, or is worded most consistently with the style and tone of the passage as a whole. If you think the original version is the best, choose "NO CHANGE".

Haiti

[§1] Although my friends and family were skeptical of whether <1> I would be safe, I boarded the plane in New York boldly <2> and flew to Haiti. My college roommate had agreed to take medical supplies to a rural clinic where his brother was a physician, and I agreed to go and help.

[§2] When me and my roommate <3> landed at the airport in the capital Port au Prince, the chaos inside the airport was frightening. Dozens of men approached us while gesturing to our luggage, and yelling at us in Creole. They wanted us to select their taxis. I was thrilled <4> when my roommate smiled at someone who called our names through the crowd.

[§3] Papi, our designated transporter, was a Haitian man in his early twenties who works <5> for the physician. He warmly welcomed us to his country, and seemed to have a great sense of humor. <6> He laughed nonstop during our ride through the capital city. Once we were on the open highway, Papi taught us basic Creole greetings to pass the time during our excessively long four-hour commute. <7>

[§4] The mountainous town where we would spend the week was beautiful, and I immediately fell in love with the place and its people. The views rocked! <8> Even though I could not fluently speak Creole, I made the most of my time with the land and its inhabitants. Several daily tasks kept me busy that week. The medical clinic was a modest two-room building, and their <9> staff needed help reorganizing the supply pantry. I removed, counted, sorted, and restocked supplies, <10> before adding the additional resources we brought from the United States. After I cleaned and organized the supply pantry, I assisted a visiting nutritionist with distributing vitamins to the locals. <11>

[§5] Each evening, two dozen young children would sit on the porch where my roommate and I stayed. They laughed constantly, they <12> always found joy in the simplest of things. They did teach <13> us to count in Creole and read children's stories to us in French. They invited us to kick balls with them and chase yard chickens. Even though they did not have many toys, the children entertained one another with conversation, laughter and storytelling.

[§6] When it was time to leave Haiti and return to New York, I was sad to say goodbye. Although my roommate and I delivered medical supplies to their community, the people gave us memories that will last the rest of our lives. <14>

Which choice most strongly suggests that the experience in Haiti was a positive one for the writer?

  1. thrilled when my roommate smiled
  2. they laughed constantly
  3. I was sad
  4. memories that will last

Answer(s): D

Explanation:

D is the correct choice because of emphasis. In his conclusion, the writer emphasized that what he received from the community was greater than what he delivered to the community.



Share your comments for Test Prep ACT Section 4: Science Reasoning exam with other users:

A
AI Tutor Explanation
4/25/2026 1:42:20 PM

Question 104:

  • Correct answer: D) Multi-Terabyte (TB) Range

  • Brief explanation:
- clustering keys organize data into micro-partitions to improve pruning when queries filter on those columns. - The performance benefit is most significant for very large tables; for small tables the overhead of maintaining clustering outweighs gains. - Therefore, as a best practice, define clustering keys on tables at the TB scale.

C
Community Helper
4/25/2026 2:03:10 AM

Q23: Fabric Admin is correct. Because Domain admin cannot create domains. Only Fabric Admin can among the given options. Q51: Wrapping @pipeline.parameter.param1 inside {} will return a string. But question requires the expression to return Int, so correct answer should be @pipeline.parameter.param1 (no {})

A
AI Tutor Explanation
4/23/2026 3:07:03 PM

Question 62:

  • Correct answer: D (per the page)

  • Note: The explanation text on the page describes option B (use ZDX score and Analyze Score to trigger the Y Engine analysis), indicating a mismatch between the stated answer and the rationale.

  • Key concept: For fast root-cause analysis, leverage telemetry and auto-correlated insights:
- Use the user’s ZDX score for AWS and run Analyze Score to activate the Y Engine, which correlates metrics across network, client, and application to pinpoint the issue quickly.
  • Why the other options are less effective:
- A: Only checks for outages; doesn’t provide actionable root-cause analysis. - C: Deep Trace helps visibility but is manual and time-consuming. - D: Packet capture is invasive and slow; not the quickest path to root cause.

A
AI Tutor Explanation
4/23/2026 12:26:21 PM

Question 32:

  • Answer: A (2.4GHz)

  • Why: Lower-frequency signals have longer wavelengths and experience less attenuation when passing through walls and obstacles. Higher frequencies (5GHz, 6GHz) are more easily blocked by walls. NFC operates over very short distances and is not meant to penetrate walls. So 2.4 GHz best penetrates physical objects like walls.

A
AI Tutor Explanation
4/21/2026 8:48:36 AM

Question 3:

  • False is the correct answer (Option B).

Why:
  • In Snowflake, a database is a metadata object that exists within a single Snowflake account. Accounts are isolated—there isn’t one database that lives in multiple accounts.
  • You can access data across accounts via data sharing or database replication, but these create separate database objects in the other accounts (e.g., a database in the consumer account created from a share), not a single shared database across accounts.

So a single database cannot exist in more than one Snowflake account.

A
Anonymous User
4/16/2026 10:54:18 AM

Question 1:

  • Correct answer: E — date = sys.argv[1]
  • Why this is correct:
- When a Databricks Job passes parameters to a notebook, those parameters are supplied to the notebook's Python process as command-line arguments. The first argument after the script name is sys.argv[1], so date = sys.argv[1] captures the passed date value directly.
  • How it compares to other options:
- date = spark.conf.get("date") reads from Spark config, not from job parameters. - input() waits for user input at runtime, which isn’t how job parameters are provided. - date = dbutils.notebooks.getParam("date") would work if the notebook were invoked via dbutils.notebook.run with parameters, not

A
Anonymous User
4/15/2026 4:42:07 AM

Question 528:

  • Correct answer: NSG flow logs for NSG1 (Option B)

  • Why:
- Traffic Analytics uses NSG flow logs to analyze traffic patterns. You must have NSG flow logs enabled for the NSGs you want to monitor. - An Azure Log Analytics workspace is also required to store and query the traffic data. - Network Watcher must be available in the subscription for traffic analytics to function.
  • What to configure (brief steps):
- Ensure Network Watcher is enabled in the East US region (for the subscription/region). - Enable NSG flow logs on NSG1. - Ensure a Log Analytics workspace exists and is accessible (read/write) so Traffic Analytics can store and query logs.
  • Why other options aren’t correct:
- “Diagnostic settings for VM1” or “Diagnostic settings for NSG1” alone don’t guarantee flow logs are captured and sent to Log Analytics, which Traffic Analytics relies on. - “Insights for VM1” is not how Traffic Analytics collects traffic data.

A
Anonymous User
4/15/2026 2:43:53 AM

Question 23:
The correct answer is Domain admin (option B), not Fabric admin.

  • Domain admin provides domain-level management: create domains/subdomains and assign workspaces within those domains, which matches the tasks while following least privilege.
  • Fabric admin is global-level access and is more privileges than needed for this scenario (it would grant broader control across the Fabric environment).

A
Anonymous User
4/14/2026 12:31:34 PM

Question 2:
For question 2, the key concept is the Longest Prefix Match. Routers pick the route whose subnet mask is the most specific (largest prefix length) that still matches the destination IP.
From the options:

  • A) 10.10.10.0/28 ? 10.10.10.0–10.10.10.15
  • B) 10.10.13.0/25 ? 10.10.13.0–10.10.13.127
  • C) 10.10.13.144/28 ? 10.10.13.144–10.10.13.159
  • D) 10.10.13.208/29 ? 10.10.13.208–10.10.13.215

The destination Host A’s IP must fall within 10.10.13.208–10.10.13.215 for the /29 to be the best match. Since /29 is the longest prefix among the matching options, Router1 will use 10.10.13.208/29.
Thus, the correct answer is D.

S
srameh
4/14/2026 10:09:29 AM

Question 3:

  • Correct answer: Phase 4, Post Accreditation

  • Explanation:
- In DITSCAP, the four phases are: - Phase 1: Definition (concept and requirements) - Phase 2: Verification (design and testing) - Phase 3: Validation (fielding and evaluation) - Phase 4: Post Accreditation (ongoing operations and lifecycle management) - The description—continuing operation of an accredited IT system and addressing changing threats throughout its life cycle—fits the Post Accreditation phase, which covers operations, maintenance, monitoring, and reauthorization as threats and environment evolve.

O
onibokun10
4/13/2026 7:50:14 PM

Question 129:
Correct answer: CNAME

  • A CNAME record creates an alias for a domain, so newapplication.comptia.org will resolve to whatever IP address www.comptia.org resolves to. This ensures both names point to the same resource without duplicating the IP.
  • Why not the others:
- SOA defines authoritative information for a zone. - MX specifies mail exchange servers. - NS designates name servers for a zone.
  • Notes: The alias name (newapplication.comptia.org) should not have other records if you use a CNAME for it, and CNAMEs aren’t used for the zone apex (root) domain. This scenario uses a subdomain, so a CNAME is appropriate.

A
Anonymous User
4/13/2026 6:29:58 PM

Question 1:

  • Correct answer: C

  • Why this is best:
- Uses OS Login with IAM, so SSH access is granted via Google accounts rather than distributing per-user SSH keys. - Granting the compute.osAdminLogin role to a Google group gives admin access to all team members in a centralized, auditable way. - Access is auditable: Cloud Audit Logs show who accessed which VM, satisfying the security requirement to determine who accessed a given instance.
  • How it works:
- Enable OS Login on the project/instances (enable-oslogin metadata). - Add the team’s

A
Anonymous User
4/13/2026 1:00:51 PM

Question 2:

  • Answer: D. Azure Advisor

  • Why: To view security-related recommendations for resources in the Compute and Apps area (including App Service Web Apps and Functions), you use Azure Advisor. Advisor surfaces personalized best-practice recommendations across resources, including security, and shows which resources are affected and the severity.

  • Why not the others:
- Azure Log Analytics is for ad-hoc querying of telemetry, not for viewing security recommendations. - Azure Event Hubs is for streaming telemetry data, not for security recommendations.
  • Quick tip: In the portal, navigate to Azure Advisor and check the Security recommendations for App Services to see actionable items and affe

D
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4/11/2026 5:36:42 AM

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4/8/2026 6:37:56 AM

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4/6/2026 5:22:54 PM

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LRK
3/22/2026 2:38:08 PM

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3/6/2026 5:26:16 AM

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12/16/2025 9:57:10 AM

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11/29/2025 2:19:59 AM

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9/25/2025 9:11:14 AM

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9/15/2025 11:21:52 PM

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9/2/2025 7:42:00 PM

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8/22/2025 4:16:51 AM

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