TEAS practice test (science
Questions & Verified Answers 2026
Quiz_________________?
1H1
Explanation: 1 + 7 = 8
4 + 14 = 16, 16 + 1 = 17
The proton and neutron complement is equal, required by law of conservation of mass and
charge -
ANSWER✅
4 He + 14 N--> 17 O + X
Which of the following options for "x" in the nuclear reaction above?
a) 1H 1
b) 18 F 9
c) 3H 1
d) 1 N 0
Quiz_________________?
4-
ANSWER✅
Which of the following represents the number of different cells formed upon completion of
mitosis II?
1
, a) 1
b) 2
c) 3
d) 4
Quiz_________________?
7
The mass of an atom is the sum of protons and neutrons in its nucleous -
ANSWER✅
An atom of lithium, atm number 3, has 3 protons, 4 neutrons, and 3 electrons. What is the
atom's mass number?
a) 3
b) 6
c) 7
d) 10
Quiz_________________?
9 joules -
ANSWER✅
Suppose a 2-kilogram mass is traveling at 3 meters/second. Which is the following is the
objects kinetic energy?
a) 3 joules
b) 6 joules
c) 9 joules
d) 18 joules
2
, Quiz_________________?
11 -
ANSWER✅
How many organ systems are there in the human body?
Quiz_________________?
25%
Each parent is a carrier of the disease (Cf) then the child would have a 25% chance of having
cystic fibrosis -
ANSWER✅
Cystic fibrosis is a homozygous recessive condition. A genetic counselor should advise
concerned parents that, if each of them had a parent with cystic fibrosis yet neither of them
is affected, the probability of their potential child being affected is:
a) 0%
b) 25%
c) 50%
d) 100%
Quiz_________________?
100% -
ANSWER✅
A certain disease is carried on the allele (a) which is recessive to the normal condition (A).
If a normal (AA) male meet with a female who has the disease (aa), what is the percentage
of offspring that are carriers of the disease?
a) 0%
b) 25%
c) 75%
d) 100%
3
, Quiz_________________?
114 neutrons and 77 electrons
191-77=114 -
ANSWER✅
Which of the following indicates the number of neutrons and electrons for a neutral isotope
of iridium that has a mass number of 191?
a) 77 neutrons and 114 electrons
b) 114 neutrons and 77 electrons
c) 191 neutrons and 114 electrons
d) 191 neutrons and 77 electrons
Quiz_________________?
231 Th 90
Look for numbers that correctly ad up to the number on the opposite side of the reaction
231+4 = 235
90+2 = 92
In natural decay of radioisotope uranium 235, uranium loses 2 protons and 4 mass units, the
atomic number is reduced by 2 and the mass number is reduced by 4. corresponding to
thorium 231 -
ANSWER✅
235 U --> X + 4 He 92 2
Which of the following is "x" in the reaction above?
a) 239 Pu 94
b) 231 Pu 94
c) 231 Th 90
d) 239 Th 90
4
Questions & Verified Answers 2026
Quiz_________________?
1H1
Explanation: 1 + 7 = 8
4 + 14 = 16, 16 + 1 = 17
The proton and neutron complement is equal, required by law of conservation of mass and
charge -
ANSWER✅
4 He + 14 N--> 17 O + X
Which of the following options for "x" in the nuclear reaction above?
a) 1H 1
b) 18 F 9
c) 3H 1
d) 1 N 0
Quiz_________________?
4-
ANSWER✅
Which of the following represents the number of different cells formed upon completion of
mitosis II?
1
, a) 1
b) 2
c) 3
d) 4
Quiz_________________?
7
The mass of an atom is the sum of protons and neutrons in its nucleous -
ANSWER✅
An atom of lithium, atm number 3, has 3 protons, 4 neutrons, and 3 electrons. What is the
atom's mass number?
a) 3
b) 6
c) 7
d) 10
Quiz_________________?
9 joules -
ANSWER✅
Suppose a 2-kilogram mass is traveling at 3 meters/second. Which is the following is the
objects kinetic energy?
a) 3 joules
b) 6 joules
c) 9 joules
d) 18 joules
2
, Quiz_________________?
11 -
ANSWER✅
How many organ systems are there in the human body?
Quiz_________________?
25%
Each parent is a carrier of the disease (Cf) then the child would have a 25% chance of having
cystic fibrosis -
ANSWER✅
Cystic fibrosis is a homozygous recessive condition. A genetic counselor should advise
concerned parents that, if each of them had a parent with cystic fibrosis yet neither of them
is affected, the probability of their potential child being affected is:
a) 0%
b) 25%
c) 50%
d) 100%
Quiz_________________?
100% -
ANSWER✅
A certain disease is carried on the allele (a) which is recessive to the normal condition (A).
If a normal (AA) male meet with a female who has the disease (aa), what is the percentage
of offspring that are carriers of the disease?
a) 0%
b) 25%
c) 75%
d) 100%
3
, Quiz_________________?
114 neutrons and 77 electrons
191-77=114 -
ANSWER✅
Which of the following indicates the number of neutrons and electrons for a neutral isotope
of iridium that has a mass number of 191?
a) 77 neutrons and 114 electrons
b) 114 neutrons and 77 electrons
c) 191 neutrons and 114 electrons
d) 191 neutrons and 77 electrons
Quiz_________________?
231 Th 90
Look for numbers that correctly ad up to the number on the opposite side of the reaction
231+4 = 235
90+2 = 92
In natural decay of radioisotope uranium 235, uranium loses 2 protons and 4 mass units, the
atomic number is reduced by 2 and the mass number is reduced by 4. corresponding to
thorium 231 -
ANSWER✅
235 U --> X + 4 He 92 2
Which of the following is "x" in the reaction above?
a) 239 Pu 94
b) 231 Pu 94
c) 231 Th 90
d) 239 Th 90
4
