What Is the TEAS Science Test?

The ATI Nursing Science Test is one of the most difficult sections for many test takers. As one of the largest topic areas, with a lot of material to cover, mastering the Science section requires patience and perseverance.

The TEAS Science Test is a section within the exam focused on three science topics. Of all the sections of the ATI TEAS exam, Science is one of the largest, worth 31% of the exam.

The section comprises 51 questions to be answered in just over an hour (63 minutes). The ATI TEAS Science section is comprised of three topics:

  • Human Anatomy & Physiology, (18 items, 40% of the Science section)
  • Biology, (9 items, 20% of the Science section)
  • Chemistry, (9 items, 20% of the Science section)
  • Scientific Reasoning (9 items, 20% of the Science section)
  • An additional 6 items are included as pretest items

The Science section can be many applicants' most daunting part of the TEAS Test. Use our detailed study guides and thoroughly read the questions' explanations to learn the complex subject matter, and solve full-length simulation tests to improve your performance under time pressure.

Free TEAS Test Science Practice Questions

Practice and exposure to the various question types that appear on the TEAS Science Test are key to your success. Below you will find free practice question examples that are likely to appear on the TEAS Science Test.

Which of the following correctly describes a property of carbon-14?

    1. It has an atomic number of 14
    2. It has 6 protons and 8 neutrons
    3. It has 7 protons and 7 neutrons
    4. It has a mass number of 8
Answer & Explanation

The correct answer is (B).

Carbon's atomic number is always 6, which means that carbon always has 6 protons. The most stable isotope of carbon is carbon-12, which has 6 neutrons and 6 protons.

Carbon-14, a radioactive isotope, has 8 neutrons; this can be deduced from the isotope's mass number (14), which is the number protons and neutrons.

Which of the following diseases is caused by vitamin C deficiency?

  1. Rickets
  2. Beriberi
  3. Scurvy
  4. Anemia

Answer & Explanation

The correct answer is (C).

Scurvy is the disease caused by vitamin C deficiency. Vitamin C is found in fresh fruit and vegetables. Therefore, scurvy used to be highly prevalent in sailors, whose diets lacked fresh produce. Vitamin C plays a key role in the formation of collagen, a protein found in connective tissue. A deficiency of vitamin C is characterized by lethargy, gum disease, edema, and more. This deficiency can be cured by consuming citrus fruits or other vitamin-C-rich foods.

Rickets is a disease caused by vitamin D deficiency. Vitamin D is synthesized in the human body upon exposure to sunlight. Therefore, Rickets was highly prevalent during the Industrial Revolution in Europe, where children worked in factories and were exposed to very little sunlight while growing up.

Beriberi is a disease caused by vitamin B1 deficiency. Since Vitamin B1 is abundant in whole rice, meat, and legumes, Beriberi is prevalent is certain areas in Asia where the diet is composed primarily of white rice.

Anemia is a disease caused by a red blood cell (RBC) deficiency or by a hemoglobin deficiency. Such deficiencies can be the result of malnutrition, infections, genetic diseases, and more.

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How to Pass the TEAS Science Test

Many nursing programs state certain science subjects as pre-requisites to their program. Double check your program admission requirements. Sometimes, courses you have previously taken can assist with your preparation for the TEAS Test, by providing a foundation of knowledge for the topics covered on the TEAS Science Test

Use TestPrep-Online’s ATI TEAS Science Study Guide to improve your test performance. ATI testing's TEAS science section of the exam has undergone considerable changes, so we created a study guide to outline the material for you, for free! Use our free PDF along with our updated ATI TEAS practice tests to be sure that you cover all the material you need to know. Our PDF is free to download and print now.

ATI Nursing TEAS Test Practice Packs

We write hundreds of questions every year to help students prepare for academic tests. Our TEAS Science Pack is created with your needs in mind, containing practice science questions for all three topics.

The ATI TEAS Science Pack Includes:

  • Two full-length TEAS 7 Science Sections
  • 32 extra questions covering TEAS science topics
  • TEAS Science study guide

Free TEAS Practice Test Questions

Want more TEAS Science practice like the free samples above? TestPrep-Online is a leader in e-learning services, helping thousands of people pass education tests every year. We have developed a brand new learning and testing packages for the ATI TEAS test 7th edition. If you are preparing for an upcoming exam, you can use our ATI TEAS practice packs to prepare for your TEAS test.

ATI Testing, ATI™, TEAS®, Test of essential academic skills, assessment technologies institute and other trademarks are the property of their respective trademark holders. None of the trademark holders are affiliated with TestPrep-Online or this website.

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