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TEAS Science Practice Questions

ATI TEAS 7 - Science Section — Practice with free TEAS Science sample questions covering human anatomy and physiology, biology, chemistry, and scientific reasoning. Each question includes a detailed explanation to help you understand the concepts, not just memorize answers.

50
Total Questions
63 minutes
Time Limit
Varies by school (typically 58-70%)
Passing Score
$90-$115
Registration Fee

Free Sample Questions

Here are 5 free sample questions from our full bank of 450+ TEAS Science practice questions. Try them out below — click "Show Answer" to reveal the correct response and explanation.

1

Which of the following best describes the role of the sinoatrial (SA) node in the cardiac conduction system?

AA) It receives deoxygenated blood from the superior vena cava
BB) It generates electrical impulses that initiate each heartbeat
CC) It pumps oxygenated blood into the aorta during systole
DD) It regulates blood pressure by constricting arterial walls
2

During mitosis, at which phase do the sister chromatids separate and move toward opposite poles of the cell?

AA) Prophase
BB) Metaphase
CC) Telophase
DD) Anaphase
3

A solution with a pH of 3 is how many times more acidic than a solution with a pH of 5?

AA) 100 times more acidic
BB) 2 times more acidic
CC) 10 times more acidic
DD) 1,000 times more acidic
4

A researcher wants to test whether a new fertilizer increases tomato plant growth. She grows 20 plants with the fertilizer and 20 plants without it, keeping all other conditions identical. Which component of this experiment represents the control group?

AA) The 20 plants receiving the new fertilizer
BB) The identical growing conditions maintained for both groups
CC) The 20 plants grown without the fertilizer
DD) The measurement of plant height over time
5

If a parent with type AB blood and a parent with type O blood have children, which blood types are possible in their offspring?

AA) Type A, type AB, and type O only
BB) Type A and type B only
CC) Type AB and type O only
DD) Type A, type B, type AB, and type O

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About the TEAS Science

Format & Structure

Total Questions
50
Time Limit
63 minutes
Format
Multiple choice, computer-based

Scoring & Cost

Passing Score
Varies by school (typically 58-70%)
Registration Fee
$90-$115

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Frequently Asked Questions

What science topics are covered on the TEAS?

The TEAS Science section covers four main areas: human anatomy and physiology, biology, chemistry, and scientific reasoning. Anatomy and physiology makes up the biggest chunk, so you'll want to spend the most study time there. The biology and chemistry questions tend to focus on foundational concepts rather than advanced topics.

What's the hardest part of the TEAS Science section?

Most students say human anatomy and physiology is the toughest area because there's just so much material to cover - every major body system, their functions, and how they interact. If you haven't taken an A&P course recently, it can feel pretty overwhelming. Chemistry tends to be the second hardest, especially if you're rusty on things like the pH scale or chemical bonding.

How much of the TEAS Science section is anatomy and physiology?

Anatomy and physiology makes up roughly 32 out of 50 questions on the Science section, which is about 64% of the content. That's a significant portion, so it should be your primary focus when studying. You'll need to know the major organ systems - cardiovascular, respiratory, nervous, digestive, endocrine, and more - along with their key structures and functions.

How should I study for the TEAS Science section?

Start with anatomy and physiology since it's the biggest portion of the section. Use diagrams and flashcards for body systems - visual learning really helps here. For chemistry, focus on the basics like atomic structure, the periodic table, chemical reactions, and pH. Don't skip scientific reasoning either, because those questions test your ability to interpret experiments and data, which you can practice pretty quickly.

Do I need to know chemistry for the TEAS?

Yes, but don't panic - you don't need college-level organic chemistry or anything that intense. The TEAS covers basic chemistry concepts like atomic structure, chemical bonds, states of matter, solutions, acids and bases, and simple chemical reactions. If you took high school chemistry, a lot of it will come back to you with some review. Spend a few days going over the fundamentals and you should be in decent shape.

Is the TEAS Science section harder than the other sections?

Science is generally considered the most challenging section on the TEAS by a pretty wide margin. It covers the broadest range of material and requires more memorization than Reading or English. Math can also be tricky, but at least the content is more focused. The good news is that the Science questions are straightforward multiple choice - they're testing whether you know the material, not trying to confuse you with complicated question formats.

Is a periodic table provided on the TEAS Science section?

Yes, you'll have access to a periodic table during the Science section of the TEAS. You won't need to memorize element symbols or atomic numbers, but you should know how to read and use the table effectively. Practice finding atomic mass, identifying element groups, and understanding how the table is organized by atomic number - that way you won't waste time figuring it out during the actual assessment.

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