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The TEAS 7 Science Exam evaluates a student's comprehension of scientific principles in biology, chemistry, physiology, and anatomy. To prepare for this section, individuals aspiring to work in the nursing industry can use resources like review books, online courses, and practice tests. Practicing with TEAS science practice tests can help simulate the actual test experience and help identify areas that require additional study.

We provide excellent, well, illustrated ATI TEAS Science practice test questions with in-depth answer explanations that will help you distinguish correct and incorrect answers. All the questions are thoroughly prepared by experienced tutors who have done the test before. This means you will grab what to expect in the real exam after taking their TEAS Science practice test.

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Exam : Test of Essential Academic Skills (TEAS)

Category : TEAS Science

Reading Time : 6 minutes

Overview of TEAS© Science Exam Content

The TEAS science test evaluates the test-takers understanding of fundamental scientific concepts and their ability to apply that knowledge in practical situations. In this test, you're expected to finish 50 questions within 60 minutes. The questions are further broken into five groups:

    Biology – 9 questions
    Chemistry- 8 questions
    Anatomy & physiology -18 questions
    Scientific reasoning – 9 questions
    Unscored questions – 6 questions

Why choose Naxlex Practice Tests?

By taking the Naxlex ATI TEAS Science practice test, the student can enhance their confidence and develop effective strategies for taking the test. The Naxlex science practice tests contain diverse questions and explanations of the correct answers. These can help individuals enhance their understanding of essential concepts. With enough free ATI TEAS Science practice tests, the exam taker acquires the necessary knowledge and skills to excel on the TEAS 7 Science Exam.

Different Sections and Sample Questions

Here are sample questions about what you expect to find on your TEAS 7 Exam or Naxlex ATI TEAS Science practice test.

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Sodium chloride


Sodium chloride is a compound of sodium (Na) and chlorine (Cl) ions in a 1:1 ratio. The chemical formula for sodium chloride is, therefore, NaCl. Option B) NaOH is the formula for sodium hydroxide C) HCl is the formula for hydrochloric acid D) KCl, is the formula for potassium chloride.

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Example in Chemistry

What is the chemical formula for sodium chloride?


For example, in Biology question

Which of the following is NOT a function of the kidneys?

    Regulating blood pressure
    Filtering waste from the blood
    Secreting digestive enzymes
    Regulating the body's pH

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Secreting digestive enzymes


The kidneys regulate blood pressure, filter waste from the blood, and regulate the body's pH. The kidneys do not secrete digestive enzymes that are the function of the pancreas; they secrete enzymes that help break down food in the small intestine.

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Production of hormones


The skin is the hugest organ in the human body and has several functions, like protection from infection, regulation of body temperature, and synthesis of vitamin D. However, the skin is not responsible for producing hormones. Hormones are produced by glands in the endocrine system, such as the thyroid gland, pituitary gland, and adrenal gland.

Example in Anatomy & Physiology

Which of the following is NOT a function of the skin?

Protection from infection
Regulation of body temperature
Synthesis of vitamin D
Production of hormones

Example Scientific Reasoning

The process of diffusion occurs from an area of __________ concentration to an area of __________ concentration

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high, low


Diffusion is the moving of molecules from an area of high concentration to an area of low concentration. This movement continues until the concentration of molecules is equal on both sides of the membrane. Therefore, in the blank spaces of the question, we can fill in the words "high" and "low" to complete the sentence.

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The heart is a crucial organ that pumps oxygen-rich blood to the body's tissues and returns deoxygenated blood to the lungs for re-oxygenation. This question is an example of an unscored science question that may appear on the TEAS exam. It is unscored because it is not counted towards the test-taker's final score, but it is used for research to help improve future test versions.

Example of Unscored/Experimental Questions

The _________ is a muscular organ that contracts to pump blood throughout the body.


Naxlex ATI TEAS Science practice tests provide exam takers with the best questions and well-researched explanations. Almost all the nurses who have used the Naxlex TEAS practice test passed their exam and made it to nursing school. Furthermore, Naxlex offers a 200% money-back guarantee if you pass their ATI TEAS Science practice test with over 80% and fail the TEAS test. The question is a replica of the TEAS actual exams, thus helping you familiarize yourself with the test, build your confidence, and help you exhaustively prepare for the test.

With the proper preparation before the exam, you can pass the TEAS Exam on your first attempt.

Join Naxlex to get 400+ past papers and expert consultation to help you navigate the TEAS exam and come out on top!

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Tips for Passing the TEAS Science Test

The passing scores for the TEAS exam may vary depending on the school or program you are applying to. After the exam, you will receive a composite score for all test sections. However, most schools set their minimum passing score between 65% to 75%.

The science portion of the TEAS Exam and the ATI TEAS Science practice test has 50 questions, but only 44 will be scored. It is not disclosed which questions are unscored, so test-takers will not know which questions count towards their final score and which do not.

The TEAS science takes 60 minutes to tackle 50 questions.

Pass on first time!

Struggling to pass the TEAS exam?

With questions that are almost 90% similar to actual exams you will be guaranteed to pass it on first try .