TEAS practice test (science portion)
ATI TEAS Science 2026 Structured
Practice Test with High-Yield
Questions, Answers, and Evidence-
Based Rationales
,Breakdown of what begins in the small intestine? Fats
a) protein
b) fats
c) fiber
d) carbohydrates
In geology, what is considered a significant departure A paradigm shift
from previous ideas?
a) ideology
b) theoretical refinement
c) a paradigm shift
d) model adjustment
What describes the increase in alleles that permits a Adaptation
species to survive and reproduce better in an
environment from generation to generation?
a) DNA
b) Genetic drift
c) Mutation
d) adaptation
What nervous systems directs the bodies flight or flight Sympathetic
response?
a) peripheral
b) central
c) parasympathetic
d) sympathetic
What is used in quantitative investigations? Numerical information
a) sensory information
b) numerical information
c) phenomenological research
d) ethnographic research
Which of the following taxonomic ranks is the most Phylum
general? Order, genus, phylum, family
a) order
b) genus
c) phylum
d) family
Water undergoes relatively minor temperature and phase High specific heat and high heat of vaporization
changes compared to other substances due to both its
what?
a) low specific heat and low vaporization
b) low specific heat and high heat vaporization
c) high specific heat and low heat of vaporization
d) high specific heat and high heat of vaporization
, What is an example of hydrocarbons containing double C4H8
bonds?
a) C2H6
b) C4H8
c) C6H10
d) C8H12
What represents the correct order of scientific process? Hypothesis, data, analysis
a) hypothesis, data, analysis
b) hypothesis, analysis, data
c) data, hypothesis, analysis
d) data, analysis, hypothesis
What organ system supplies the body cells with oxygen Cardiovascular
and nutrients?
a) cardiovascular
b) digestive
c) nervous
d) immune
Through what does blood pass after leaving the right Pulmonary artery
ventricle during contraction of the heart?
a) aorta
b) pulmonary artery
c) vena cava
d) mitral valve
What organ system supplies the body with oxygen and Respiratory
removes carbon dioxide?
a) integumentary
b) endocrine
c) respiratory
d) renal
What is responsible for the peristalsis that occurs in the Smooth muscle
digestive tract?
a) smooth muscle
b) skeletal muscle
c) connective tissue
d) subcutaneous tissue
A proton should have what two characteristics when An opposite charge and a larger mass
compared to the charge and the mass of an electron?
a) the same charge and the same mass
b) the same charge and larger mass
c) an opposite charge and same mass
d) an opposite charge and larger mass
The spine is part of what system? Skeletal
a) lymphatic
b) nervous
c) skeletal
d) endocrine
ATI TEAS Science 2026 Structured
Practice Test with High-Yield
Questions, Answers, and Evidence-
Based Rationales
,Breakdown of what begins in the small intestine? Fats
a) protein
b) fats
c) fiber
d) carbohydrates
In geology, what is considered a significant departure A paradigm shift
from previous ideas?
a) ideology
b) theoretical refinement
c) a paradigm shift
d) model adjustment
What describes the increase in alleles that permits a Adaptation
species to survive and reproduce better in an
environment from generation to generation?
a) DNA
b) Genetic drift
c) Mutation
d) adaptation
What nervous systems directs the bodies flight or flight Sympathetic
response?
a) peripheral
b) central
c) parasympathetic
d) sympathetic
What is used in quantitative investigations? Numerical information
a) sensory information
b) numerical information
c) phenomenological research
d) ethnographic research
Which of the following taxonomic ranks is the most Phylum
general? Order, genus, phylum, family
a) order
b) genus
c) phylum
d) family
Water undergoes relatively minor temperature and phase High specific heat and high heat of vaporization
changes compared to other substances due to both its
what?
a) low specific heat and low vaporization
b) low specific heat and high heat vaporization
c) high specific heat and low heat of vaporization
d) high specific heat and high heat of vaporization
, What is an example of hydrocarbons containing double C4H8
bonds?
a) C2H6
b) C4H8
c) C6H10
d) C8H12
What represents the correct order of scientific process? Hypothesis, data, analysis
a) hypothesis, data, analysis
b) hypothesis, analysis, data
c) data, hypothesis, analysis
d) data, analysis, hypothesis
What organ system supplies the body cells with oxygen Cardiovascular
and nutrients?
a) cardiovascular
b) digestive
c) nervous
d) immune
Through what does blood pass after leaving the right Pulmonary artery
ventricle during contraction of the heart?
a) aorta
b) pulmonary artery
c) vena cava
d) mitral valve
What organ system supplies the body with oxygen and Respiratory
removes carbon dioxide?
a) integumentary
b) endocrine
c) respiratory
d) renal
What is responsible for the peristalsis that occurs in the Smooth muscle
digestive tract?
a) smooth muscle
b) skeletal muscle
c) connective tissue
d) subcutaneous tissue
A proton should have what two characteristics when An opposite charge and a larger mass
compared to the charge and the mass of an electron?
a) the same charge and the same mass
b) the same charge and larger mass
c) an opposite charge and same mass
d) an opposite charge and larger mass
The spine is part of what system? Skeletal
a) lymphatic
b) nervous
c) skeletal
d) endocrine
