TEAS Science Practice Test: 50 Questions, 60 Minutes, Mostly A&P

The TEAS 7 science section gives you 50 questions in 60 minutes — 44 scored, 6 unscored pretest items you can't identify — and it is the section candidates most commonly report as the hardest on the exam. The reason is concentration: of the 44 scored items, 18 come from a single sub-area, human anatomy and physiology.

That weighting should drive your whole study plan.

The four sub-areas, by the numbers

ATI publishes the scored breakdown: human anatomy and physiology (18), biology (9), chemistry (8), and scientific reasoning (9). Do the arithmetic and A&P alone is roughly 41% of your science score — more than biology and chemistry combined. A candidate who is solid on body systems and shaky on stoichiometry is in far better shape than the reverse.

What each sub-area actually asks: A&P covers the major organ systems — cardiovascular, respiratory, digestive, renal, nervous, endocrine, skeletal, muscular, reproductive — plus tissue types, anatomical planes and directional terms. Biology leans on cell structure, macromolecules, DNA/RNA, heredity, and cellular respiration. Chemistry stays at fundamentals: atomic structure, bonds, pH, states of matter, reaction basics, solutions. Scientific reasoning tests the logic of experiments — variables, controls, measurement, and reading data.

Where the section gets people

Three patterns show up consistently in candidate accounts. First, depth over vocabulary: knowing the word "nephron" is not the same as knowing what it does and where the question will push (filtration vs reabsorption). Second, the alternate item types land here often in our modeled distribution — an ordered-response item on the path of air through the respiratory tract, or a hot-spot click on a heart diagram, tests the same anatomy differently than a multiple-choice stem, and no partial credit softens a near-miss. Third, pacing: 60 minutes for 50 questions is 72 seconds each, and detailed physiology stems read slowly.

How to drill it here

Our science drill runs the real shape: 50 questions, 60 minutes, sub-content mix matching the published blueprint, with A&P carrying the largest share — in our current verified bank, science is the deepest section (78 items) for exactly that reason. Every item has a worked explanation, and your results break out each sub-area separately, so "I'm bad at science" resolves into something you can act on, like "chemistry is fine, A&P heart and renal questions are not."

Run one timed drill cold to get a baseline. Study the two weakest sub-areas. Drill again. When science stops being the section you fear, put it back in context with a full-length TEAS simulator run — science arrives third on the real exam, after Reading and Math and the break, when you're 112 minutes in and stamina is doing half the work.