Praxis II science 5005 with Exam with
100% Correct Answers
Which of the following can lessen the impact human population growth has on the
environment?
a. building more shelters or homes
b. water waste
c. increased food production
d. technology - ANS-d
Which branch of science would a game warden most likely employ?
a. Physics
b. Astronomy
c. Chemistry
d. Ecology - ANS-d
Freshwater is a limited resource that is needed to sustain much of life on Earth. Which
of the following reduces the availability of fresh drinking water for humans and animals?
a. increased melting of glaciers and ice caps
b. increased nitrogen pollution in oceans
c. increased desalination of ocean water
d. increased crop irrigation - ANS-d
A teacher used the following activity to teach her elementary students about the process
of science. She divided the students into teams of 3, provided them with paper, glue
sticks, and scissors, and told them their goal was to build the highest tower, but only
one student could touch the materials at a time. The teams would work as a relay, first
one student building, with the other two coaching, then when a bell rings, switch
builders, and so on until each student has had a chance to build.
Which aspect of the scientific process was the teacher most likely trying to illustrate?
a. A theory is an explanation based on general principles, observations, and
conclusions.
b. Peer review of data and conclusions is an important part of the scientific process.
c. Scientific discoveries build on the discoveries of scientists who came before.
d. Scientific theories do not become scientific laws. - ANS-c
Of the following, which contributes the most to water pollution in streams?
a. mine drainage
b. carbon dioxide from gasoline-powered vehicles
c. nuclear power plants
d. fertilizers and pesticides - ANS-d
, Which of the following scientists is particularly noted for his or her contribution to atomic
theory?
a. Niels Bohr
b. Louis Pasteur
c. Dmitri Mendeleev
d. Marie Curie - ANS-a
Which of the following is a widely-accepted explanation that is supported by
observational evidence and experimental confirmation?
a. conclusion
b. theory
c. prediction
d. hypothesis - ANS-b
Which of the following is the responsibility of the teacher with regard to the use of
chemicals?
a. requiring labels on all hazardous materials
b. knowing the chemicals used in each laboratory experiment and reviewing the
material safety data sheet for them
c. disposing of hazardous substances by taking them outside to the dumpster
d. maintaining material safety data sheets for available chemical. - ANS-b
Calvin planted a tree that measured 0.5 meters tall. If he recorded the growth of the tree
every month for two years, what would be the best way to display his findings, in order
to visually compare the progression of growth over time?
a. data table
b. scatter plot
c. line graph
d. pie graph - ANS-c
When determining the accurate measurement of a liquid, which piece of laboratory
equipment would be best to find the liquid's volume to the nearest milliliter?
a. triple beam balance
b. graduated cylinder
c. beaker
d. ruler - ANS-b
A scientist wants to show the correlation between the genre and the number of songs
downloaded from the internet. Which type of graph would be best suited for this?
a. bar graph
b. line graph
c. circle graph
d. scatter plot - ANS-d
100% Correct Answers
Which of the following can lessen the impact human population growth has on the
environment?
a. building more shelters or homes
b. water waste
c. increased food production
d. technology - ANS-d
Which branch of science would a game warden most likely employ?
a. Physics
b. Astronomy
c. Chemistry
d. Ecology - ANS-d
Freshwater is a limited resource that is needed to sustain much of life on Earth. Which
of the following reduces the availability of fresh drinking water for humans and animals?
a. increased melting of glaciers and ice caps
b. increased nitrogen pollution in oceans
c. increased desalination of ocean water
d. increased crop irrigation - ANS-d
A teacher used the following activity to teach her elementary students about the process
of science. She divided the students into teams of 3, provided them with paper, glue
sticks, and scissors, and told them their goal was to build the highest tower, but only
one student could touch the materials at a time. The teams would work as a relay, first
one student building, with the other two coaching, then when a bell rings, switch
builders, and so on until each student has had a chance to build.
Which aspect of the scientific process was the teacher most likely trying to illustrate?
a. A theory is an explanation based on general principles, observations, and
conclusions.
b. Peer review of data and conclusions is an important part of the scientific process.
c. Scientific discoveries build on the discoveries of scientists who came before.
d. Scientific theories do not become scientific laws. - ANS-c
Of the following, which contributes the most to water pollution in streams?
a. mine drainage
b. carbon dioxide from gasoline-powered vehicles
c. nuclear power plants
d. fertilizers and pesticides - ANS-d
, Which of the following scientists is particularly noted for his or her contribution to atomic
theory?
a. Niels Bohr
b. Louis Pasteur
c. Dmitri Mendeleev
d. Marie Curie - ANS-a
Which of the following is a widely-accepted explanation that is supported by
observational evidence and experimental confirmation?
a. conclusion
b. theory
c. prediction
d. hypothesis - ANS-b
Which of the following is the responsibility of the teacher with regard to the use of
chemicals?
a. requiring labels on all hazardous materials
b. knowing the chemicals used in each laboratory experiment and reviewing the
material safety data sheet for them
c. disposing of hazardous substances by taking them outside to the dumpster
d. maintaining material safety data sheets for available chemical. - ANS-b
Calvin planted a tree that measured 0.5 meters tall. If he recorded the growth of the tree
every month for two years, what would be the best way to display his findings, in order
to visually compare the progression of growth over time?
a. data table
b. scatter plot
c. line graph
d. pie graph - ANS-c
When determining the accurate measurement of a liquid, which piece of laboratory
equipment would be best to find the liquid's volume to the nearest milliliter?
a. triple beam balance
b. graduated cylinder
c. beaker
d. ruler - ANS-b
A scientist wants to show the correlation between the genre and the number of songs
downloaded from the internet. Which type of graph would be best suited for this?
a. bar graph
b. line graph
c. circle graph
d. scatter plot - ANS-d
