ANSWERS (2025-2026) 100% GUARANTEED PASS
Question 1
Chemical c is a catalyst in the reaction between chemical a and chemical b. What is the effect of
chemical c?
A) chemical c increases the rate of the reaction between a and b
B) chemical c decreases the rate of the reaction between a and b
C) chemical c initiates the reaction between a and b
D) chemical c converts a from a base to an acid
Question 2
On average how many neutrons does one atom of bromine (br) have?
A) 35
B) 44.90
C) 45
D) 79.90
TEAS 7 SCIENCE PRACTICE TEST 1 &2 pg. 1
,Question 3
On average, how many protons does one atom of zinc (zn) have?
A) 30
B) 35
C) 35.39
D) 65.39
Question 4
A scientific study has over 2000 data points. Which of the following methods is most likely to help the
researcher gain usable information from the data?
A) use statistical analysis to understand trends in the data
B) look at each individual data point and try to create a trend
C) eliminate 90% of the data so that the sample size is more manageable
D) stare at the data until a pattern pops out
Question 5
Which of the following accurately describes the path of blood through the heart?
A) blood enters the heart through the pulmonary vein, into the right atrium, through the tricuspid valve
to the right ventricle
B) once the right ventricle is full, blood exits into the pulmonary artery and then empties into the left
ventricle
C) after traveling through the lungs, oxygenated blood enters into the left atrium, then through the
mitral valve to the left ventricle
TEAS 7 SCIENCE PRACTICE TEST 1 &2 pg. 2
, D) once the left ventricle is full, the left tricuspid valve shuts, the ventricle contracts, and blood exits
through the aorta
Question 6
Which of the statements below accurately list a component along with its function? (select all that
apply)
A) collagen is a fatty compound that creates a padding between bones and other structures
B) hemoglobin is a protein in the blood that facilitates the carrying of oxygen
C) lympth is tissue that forms into nodes through which blood is filtered and cleaned
D) an antigen is a substance that stimulates the production of antibodies
Question 7
Which of the statements below list the correct function of the digestive system organ? (select all that
apply)
A) the large intestine reabsorbs water into the body to form solid waste
B) the duodenum is the part of the small intestine in which acids, fats and sugar are absorbed
C) the liver produces bile, which aids in digestion by emulsifying fats after they have passed through
the stomach
D) the ileum functions to recover vitamins, salts, and nutrients from the chyme before it passes into
the large intestine
E) the jejunum receives chyme from the stomach and is the site where most chemical digestion occurs
F) the gallbladder produces insulin to assist in the transport of sugars from the blood to the organs.
Question 8
Which pattern below best describes the elements listed in the table?
A) the elements are arranged in order by weight, with h being the heaviest atom and be being the
lightest form
TEAS 7 SCIENCE PRACTICE TEST 1 &2 pg. 3