PRAXIS: General Science Content Knowledge 5435 Exam
with Complete Solutions
Diaphragm Correct answer-Part of the compound microscope used to regulate the
amount of light being transmitted through the specimen on the slide.
1 milligram Correct answer-1 x 10 -3 grams
Kepler Correct answer-His greatest contribution to science was that he described the
orbits of the planets as ellipses.
Newton Correct answer-Used the 3 laws of planetary motion to establish universal
gravitation.
Mendel's Law of Independent assortment Correct answer-In a dihybrid cross, alleles for
different traits separate and are inherited independently of each other, resulting in a phenotype
of 9:3:3:1. Which of Mendel's laws does this illustrate?
Seven (7) is a neutral pH value. The pH scale goes from one (1) to 14. A value of one (1) is
extremely acidic, and a value of 14 is extremely basic. Correct answer-The pH of distilled
water should have what value?
Uniformitarianism Correct answer-States that the same processes that operate today
have operated over long periods with steady incremental change to shape the geology of our
planet. Plate tectonics is an example of one of those processes.
,PRAXIS: General Science Content Knowledge 5435 Exam
with Complete Solutions
This theory states that changes in the earth's crust during geological history have resulted from
the action of continuous and uniform processes.
Metabolic Rate Correct answer-In endotherms, this can change based on age, sex, size,
activity level, time of day, among other factors. Most terrestrial animals have a ______ that is 2
to 4 times their body mass index.
catalyst Correct answer-Adding a _______ to a reaction in equilibrium does not disturb
the equilibrium point.
catalyst Correct answer-A ________ speeds up the rate at which a reaction reaches
dynamic equilibrium and is added to a reaction primarily as a way to increase reaction rate. No
changes in the products will occur.
catalyst, pressure Correct answer-A reaction A(g) + B(g) → 2C(g) is in equilibrium at a
certain temperature. The amount of products cannot be increased by adding a _______ or by
increasing ______.
B. Correct answer-A(s) + B(g) → C(aq) + heat
For this reaction all of the following will affect the quantities of reactants and products at
equilibrium in a closed vessel EXCEPT:
A. an increase in the volume of reaction vessel
B. addition of a catalyst
,PRAXIS: General Science Content Knowledge 5435 Exam
with Complete Solutions
C. increase in pressure
D. increase in temperature
negative, because heat is leaving the system Correct answer-Is heat evolved a negative or
positive number?
q (heat evolved) Correct answer-m (mass) x S (specific heat of water) x ΔT (rise in temp)=
velocity Correct answer-s/t (displacement /time)
zero Correct answer-If a body goes from A to B and returns from B to A, the total
displacement is ______. Hence, the average velocity is 0 km/h.
Disconformity Correct answer-The surface division between parallel rock strata,
indicating interruption of sedimentation.
Liver Correct answer-Responsible for detoxification, plasma protein synthesis, and the
decomposition of red blood cells.
Esophagus, peristalsis Correct answer-The walls of the ________ are composed of
muscles, which move in wave-like contractions to push food into the stomach. These wave-like
contractions are called ________.
, PRAXIS: General Science Content Knowledge 5435 Exam
with Complete Solutions
Small Intestine Correct answer-Its job is to absorb most of the nutrients from what we
eat and drink. Velvety tissue lines the ________, which is divided into the duodenum, jejunum,
and ileum.
Dewpoint Correct answer-The amount of moisture of the air. The _____ has to cool at a
stable pressure in order to saturate.
Acid Correct answer-A compound in which one or more H+ ions are bonded to a negative
ion
Permeation Rate Correct answer-Rate at which the test chemical passes through the
glove material once breakthrough has occurred and equilibrium is reached. _______ involves
absorption of the chemical on the surface of the glove, diffusion through the glove, and
desorption of the chemical on the inside of the glove.
Bronsten-Lowry Acid and Base Correct answer-this type of acid is any species capable of
donating a proton; and this base is any species capable of accepting a proton.
Basaltic Correct answer-________ magma has very low viscosity. It flows freely because it
has low silica content.
with Complete Solutions
Diaphragm Correct answer-Part of the compound microscope used to regulate the
amount of light being transmitted through the specimen on the slide.
1 milligram Correct answer-1 x 10 -3 grams
Kepler Correct answer-His greatest contribution to science was that he described the
orbits of the planets as ellipses.
Newton Correct answer-Used the 3 laws of planetary motion to establish universal
gravitation.
Mendel's Law of Independent assortment Correct answer-In a dihybrid cross, alleles for
different traits separate and are inherited independently of each other, resulting in a phenotype
of 9:3:3:1. Which of Mendel's laws does this illustrate?
Seven (7) is a neutral pH value. The pH scale goes from one (1) to 14. A value of one (1) is
extremely acidic, and a value of 14 is extremely basic. Correct answer-The pH of distilled
water should have what value?
Uniformitarianism Correct answer-States that the same processes that operate today
have operated over long periods with steady incremental change to shape the geology of our
planet. Plate tectonics is an example of one of those processes.
,PRAXIS: General Science Content Knowledge 5435 Exam
with Complete Solutions
This theory states that changes in the earth's crust during geological history have resulted from
the action of continuous and uniform processes.
Metabolic Rate Correct answer-In endotherms, this can change based on age, sex, size,
activity level, time of day, among other factors. Most terrestrial animals have a ______ that is 2
to 4 times their body mass index.
catalyst Correct answer-Adding a _______ to a reaction in equilibrium does not disturb
the equilibrium point.
catalyst Correct answer-A ________ speeds up the rate at which a reaction reaches
dynamic equilibrium and is added to a reaction primarily as a way to increase reaction rate. No
changes in the products will occur.
catalyst, pressure Correct answer-A reaction A(g) + B(g) → 2C(g) is in equilibrium at a
certain temperature. The amount of products cannot be increased by adding a _______ or by
increasing ______.
B. Correct answer-A(s) + B(g) → C(aq) + heat
For this reaction all of the following will affect the quantities of reactants and products at
equilibrium in a closed vessel EXCEPT:
A. an increase in the volume of reaction vessel
B. addition of a catalyst
,PRAXIS: General Science Content Knowledge 5435 Exam
with Complete Solutions
C. increase in pressure
D. increase in temperature
negative, because heat is leaving the system Correct answer-Is heat evolved a negative or
positive number?
q (heat evolved) Correct answer-m (mass) x S (specific heat of water) x ΔT (rise in temp)=
velocity Correct answer-s/t (displacement /time)
zero Correct answer-If a body goes from A to B and returns from B to A, the total
displacement is ______. Hence, the average velocity is 0 km/h.
Disconformity Correct answer-The surface division between parallel rock strata,
indicating interruption of sedimentation.
Liver Correct answer-Responsible for detoxification, plasma protein synthesis, and the
decomposition of red blood cells.
Esophagus, peristalsis Correct answer-The walls of the ________ are composed of
muscles, which move in wave-like contractions to push food into the stomach. These wave-like
contractions are called ________.
, PRAXIS: General Science Content Knowledge 5435 Exam
with Complete Solutions
Small Intestine Correct answer-Its job is to absorb most of the nutrients from what we
eat and drink. Velvety tissue lines the ________, which is divided into the duodenum, jejunum,
and ileum.
Dewpoint Correct answer-The amount of moisture of the air. The _____ has to cool at a
stable pressure in order to saturate.
Acid Correct answer-A compound in which one or more H+ ions are bonded to a negative
ion
Permeation Rate Correct answer-Rate at which the test chemical passes through the
glove material once breakthrough has occurred and equilibrium is reached. _______ involves
absorption of the chemical on the surface of the glove, diffusion through the glove, and
desorption of the chemical on the inside of the glove.
Bronsten-Lowry Acid and Base Correct answer-this type of acid is any species capable of
donating a proton; and this base is any species capable of accepting a proton.
Basaltic Correct answer-________ magma has very low viscosity. It flows freely because it
has low silica content.
