PRAXIS 5005 SCIENCE ETS
PRACTICE TEST
The-process-by-which-a-gas-becomes-a-liquid-is-called
A.condensation
B.freezing
C.melting
D.reduction---ans-✔✔A.condensation
Condensation-is-the-process-by-which-a-gas-becomes-a-liquid.
Which-of-the-following-human-organs-is-responsible-for-the-formation-of-sperm-cells?
A.Pancreas
B.Thyroid
C.Ovary
D.Testis---ans-✔✔D.Testis
In-human-males,-the-testis-is-the-organ-in-which-the-formation-of-sperm-cells-occurs.
Which-of-the-following-best-describes-the-approximate-length-of-time-it-takes-Earth-to-
rotate-once-about-its-axis?
A.One-hour
B.One-day
C.One-month
D.One-year---ans-✔✔B.One-day
On-average,-it-takes-24-hours,-or-one-day,-for-Earth-to-rotate-once-about-its-axis.-The-
rotation-of-Earth-about-its-axis-leads-to-the-cycle-of-day-and-night.
Which-THREE-of-the-following-are-generally-acceptable-rules-for-laboratory-activities?
A.Students-should-wash-their-hands-after-mixing-chemicals-in-the-laboratory.
B.Students-should-inform-the-teacher-immediately-of-any-accidents-or-spills-in-the-
laboratory.
C.Students-should-use-cracked-glassware-only-when-the-teacher-is-in-the-laboratory.
,D.Students-should-read-instructions-thoroughly-before-performing-laboratory-
procedures.---ans-✔✔A.Students-should-wash-their-hands-after-mixing-chemicals-in-the-
laboratory.
B.Students-should-inform-the-teacher-immediately-of-any-accidents-or-spills-in-the-
laboratory.
D.Students-should-read-instructions-thoroughly-before-performing-laboratory-procedures
To-prevent-accidental-ingestion-or-absorption-of-potentially-harmful-substances,-students-
should-wash-their-hands-after-working-with-chemicals.-To-help-maintain-a-safe-
environment,-accidents-and-spills-in-the-laboratory-should-be-reported-to-the-teacher-
immediately-so-that-a-correct-response-can-be-implemented.-To-safely-and-effectively-
complete-laboratory-procedures,-students-should-read-instructions-thoroughly-before-
starting-the-procedures.-Cracked-glassware-is-a-safety-hazard-and-should-never-be-used.
Which-of-the-following-processes-most-directly-involves-the-movement-of-water-from-the-
atmosphere-to-Earth's-surface?
A.Infiltration
B.Precipitation
C.Transpiration
D.Sublimation---ans-✔✔B.Precipitation
Precipitation-is-the-process-by-which-atmospheric-water-falls-to-Earth's-surface-in-the-
form-of-rain,-hail,-sleet,-or-snow.-Because-atmospheric-water-returns-to-Earth's-surface-
primarily-through-the-process-of-precipitation,-it-is-an-important-part-of-the-water-cycle.-
Infiltration-is-the-process-by-which-water-on-Earth's-surface-enters-the-subsurface-soil-
and-rock.-Transpiration-is-the-process-by-which-water-evaporates-from-plant-leaves-and-
enters-the-atmosphere.-Sublimation-is-the-process-by-which-a-substance-transitions-
directly-from-the-solid-phase-to-the-gas-phase-without-going-through-the-liquid-phase.
Which-of-the-following-is-an-important-function-of-the-digestive-system?
A.Absorbing-nutrients-into-the-body
B.Transporting-signals-to-and-from-different-parts-of-the-body
C.Providing-structural-support-for-the-body
D.Protecting-the-body-from-ultraviolet-radiation---ans-✔✔A.Absorbing-nutrients-into-the-
body
The-digestive-system-includes-organs-that-break-down-food-into-small-molecules,-which-
are-then-absorbed-into-the-body.-The-primary-location-of-absorption-is-the-small-intestine.
As-a-rock-begins-tumbling-down-a-hillside,-most-of-its-gravitational-potential-energy-is-
converted-into
A.kinetic-energy
B.thermal-energy
, C.chemical-energy
D.nuclear-energy---ans-✔✔A.kinetic-energy
Kinetic-energy-is-the-energy-of-motion.-As-the-rock-begins-moving-down-the-hillside-under-
the-influence-of-gravity,-most-of-the-rock's-gravitational-potential-energy-is-converted-into-
kinetic-energy.
Which-of-the-following-is-the-best-example-of-an-interaction-between-different-biotic-
factors-in-an-ecosystem?
A.A-caterpillar-undergoing-metamorphosis
B.A-plant-absorbing-sunlight
C.A-grazing-animal-eating-plants
D.An-icicle-melting-on-a-warm-day---ans-✔✔C.A-grazing-animal-eating-plants
A-grazing-animal-eating-plants-is-an-example-of-an-interaction-between-two-different-
biotic-factors-(an-animal-and-the-plants-it-eats)-in-an-ecosystem.-The-metamorphosis-of-a-
caterpillar-into-a-butterfly-is-an-example-of-a-type-of-insect-life-cycle.-A-plant-absorbing-
sunlight-is-an-example-of-an-interaction-between-a-biotic-factor-(a-plant)-and-an-abiotic-
factor-(sunlight).-An-icicle-melting-on-a-warm-day-is-an-example-of-an-interaction-between-
two-abiotic-factors-(water-and-temperature).
A-neutral-atom-becomes-a-positive-ion-when-it-loses-one-or-more
A.electrons
B.neutrons
C.protons
D.nuclei---ans-✔✔A.electrons
Protons-are-positively-charged,-and-electrons-are-negatively-charged.-A-neutral-atom-has-
the-same-number-of-protons-and-electrons.-A-neutral-atom-becomes-a-positive-ion-when-
it-loses-one-or-more-electrons,-resulting-in-the-ion-having-more-positive-charges-than-
negative-charges.
Which-of-the-following-best-describes-a-galaxy?
A.A-small-celestial-body-composed-of-ice
B.A-giant-planet-orbited-by-ten-or-more-moons
C.A-collection-of-planets-revolving-around-a-star
D.A-large-cluster-of-stars,-dust,-and-gas---ans-✔✔D.A-large-cluster-of-stars,-dust,-and-gas
A-galaxy-is-a-system-composed-of-many-stars,-dust,-and-gas,-which-is-held-together-by-
gravitational-attraction.
An-object-is-moving-in-a-straight-line-at-a-constant-speed.-What-will-happen-if-a-constant-
force-is-then-applied-to-the-object-in-the-same-direction-in-which-the-object-is-moving?
PRACTICE TEST
The-process-by-which-a-gas-becomes-a-liquid-is-called
A.condensation
B.freezing
C.melting
D.reduction---ans-✔✔A.condensation
Condensation-is-the-process-by-which-a-gas-becomes-a-liquid.
Which-of-the-following-human-organs-is-responsible-for-the-formation-of-sperm-cells?
A.Pancreas
B.Thyroid
C.Ovary
D.Testis---ans-✔✔D.Testis
In-human-males,-the-testis-is-the-organ-in-which-the-formation-of-sperm-cells-occurs.
Which-of-the-following-best-describes-the-approximate-length-of-time-it-takes-Earth-to-
rotate-once-about-its-axis?
A.One-hour
B.One-day
C.One-month
D.One-year---ans-✔✔B.One-day
On-average,-it-takes-24-hours,-or-one-day,-for-Earth-to-rotate-once-about-its-axis.-The-
rotation-of-Earth-about-its-axis-leads-to-the-cycle-of-day-and-night.
Which-THREE-of-the-following-are-generally-acceptable-rules-for-laboratory-activities?
A.Students-should-wash-their-hands-after-mixing-chemicals-in-the-laboratory.
B.Students-should-inform-the-teacher-immediately-of-any-accidents-or-spills-in-the-
laboratory.
C.Students-should-use-cracked-glassware-only-when-the-teacher-is-in-the-laboratory.
,D.Students-should-read-instructions-thoroughly-before-performing-laboratory-
procedures.---ans-✔✔A.Students-should-wash-their-hands-after-mixing-chemicals-in-the-
laboratory.
B.Students-should-inform-the-teacher-immediately-of-any-accidents-or-spills-in-the-
laboratory.
D.Students-should-read-instructions-thoroughly-before-performing-laboratory-procedures
To-prevent-accidental-ingestion-or-absorption-of-potentially-harmful-substances,-students-
should-wash-their-hands-after-working-with-chemicals.-To-help-maintain-a-safe-
environment,-accidents-and-spills-in-the-laboratory-should-be-reported-to-the-teacher-
immediately-so-that-a-correct-response-can-be-implemented.-To-safely-and-effectively-
complete-laboratory-procedures,-students-should-read-instructions-thoroughly-before-
starting-the-procedures.-Cracked-glassware-is-a-safety-hazard-and-should-never-be-used.
Which-of-the-following-processes-most-directly-involves-the-movement-of-water-from-the-
atmosphere-to-Earth's-surface?
A.Infiltration
B.Precipitation
C.Transpiration
D.Sublimation---ans-✔✔B.Precipitation
Precipitation-is-the-process-by-which-atmospheric-water-falls-to-Earth's-surface-in-the-
form-of-rain,-hail,-sleet,-or-snow.-Because-atmospheric-water-returns-to-Earth's-surface-
primarily-through-the-process-of-precipitation,-it-is-an-important-part-of-the-water-cycle.-
Infiltration-is-the-process-by-which-water-on-Earth's-surface-enters-the-subsurface-soil-
and-rock.-Transpiration-is-the-process-by-which-water-evaporates-from-plant-leaves-and-
enters-the-atmosphere.-Sublimation-is-the-process-by-which-a-substance-transitions-
directly-from-the-solid-phase-to-the-gas-phase-without-going-through-the-liquid-phase.
Which-of-the-following-is-an-important-function-of-the-digestive-system?
A.Absorbing-nutrients-into-the-body
B.Transporting-signals-to-and-from-different-parts-of-the-body
C.Providing-structural-support-for-the-body
D.Protecting-the-body-from-ultraviolet-radiation---ans-✔✔A.Absorbing-nutrients-into-the-
body
The-digestive-system-includes-organs-that-break-down-food-into-small-molecules,-which-
are-then-absorbed-into-the-body.-The-primary-location-of-absorption-is-the-small-intestine.
As-a-rock-begins-tumbling-down-a-hillside,-most-of-its-gravitational-potential-energy-is-
converted-into
A.kinetic-energy
B.thermal-energy
, C.chemical-energy
D.nuclear-energy---ans-✔✔A.kinetic-energy
Kinetic-energy-is-the-energy-of-motion.-As-the-rock-begins-moving-down-the-hillside-under-
the-influence-of-gravity,-most-of-the-rock's-gravitational-potential-energy-is-converted-into-
kinetic-energy.
Which-of-the-following-is-the-best-example-of-an-interaction-between-different-biotic-
factors-in-an-ecosystem?
A.A-caterpillar-undergoing-metamorphosis
B.A-plant-absorbing-sunlight
C.A-grazing-animal-eating-plants
D.An-icicle-melting-on-a-warm-day---ans-✔✔C.A-grazing-animal-eating-plants
A-grazing-animal-eating-plants-is-an-example-of-an-interaction-between-two-different-
biotic-factors-(an-animal-and-the-plants-it-eats)-in-an-ecosystem.-The-metamorphosis-of-a-
caterpillar-into-a-butterfly-is-an-example-of-a-type-of-insect-life-cycle.-A-plant-absorbing-
sunlight-is-an-example-of-an-interaction-between-a-biotic-factor-(a-plant)-and-an-abiotic-
factor-(sunlight).-An-icicle-melting-on-a-warm-day-is-an-example-of-an-interaction-between-
two-abiotic-factors-(water-and-temperature).
A-neutral-atom-becomes-a-positive-ion-when-it-loses-one-or-more
A.electrons
B.neutrons
C.protons
D.nuclei---ans-✔✔A.electrons
Protons-are-positively-charged,-and-electrons-are-negatively-charged.-A-neutral-atom-has-
the-same-number-of-protons-and-electrons.-A-neutral-atom-becomes-a-positive-ion-when-
it-loses-one-or-more-electrons,-resulting-in-the-ion-having-more-positive-charges-than-
negative-charges.
Which-of-the-following-best-describes-a-galaxy?
A.A-small-celestial-body-composed-of-ice
B.A-giant-planet-orbited-by-ten-or-more-moons
C.A-collection-of-planets-revolving-around-a-star
D.A-large-cluster-of-stars,-dust,-and-gas---ans-✔✔D.A-large-cluster-of-stars,-dust,-and-gas
A-galaxy-is-a-system-composed-of-many-stars,-dust,-and-gas,-which-is-held-together-by-
gravitational-attraction.
An-object-is-moving-in-a-straight-line-at-a-constant-speed.-What-will-happen-if-a-constant-
force-is-then-applied-to-the-object-in-the-same-direction-in-which-the-object-is-moving?
