Praxis II science 5005
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 - answerd
Which branch of science would a game warden most likely employ?
a. Physics
b. Astronomy
c. Chemistry
d. Ecology - answerd
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 - answerd
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. - answerc
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 - answerd
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 - answera
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 - answerb
Which of the following scientists won two Nobel Prizes, one in physics and one in
chemistry, and discovered the elements Radium and Polonium?
a. Marie Curie
b.Dmitri Mendeleev
c. Rosalind Franklin
d. Antoine Lavoisier - answera
Which order of steps correctly illustrates the process of risk assessment?
a. predict an outcome, conduct research, identify problems, interpret results, make
decisions
b. make decisions, identify problems, conduct research, predict an outcome, interpret
results
c. make decisions, interpret results, conduct research, predict an outcome, identify
problems
d. identify problems, predict an outcome, conduct research, interpret results, make
decisions - answerd
Which of the following is an example of risk assessment for societal advancement in
science?
a. An agent of the Environmental Protection Agency performs an Environmental Impact
Assessment prior to the construction of a new bridge.
b. A dog breeder avoids breeding two merle dogs together in order to avoid blind
puppies.
c. A chemist wears safety glasses at all times in the lab.
d. A farmer milks his cows twice a day to prevent them from getting sick. - answera
Fifth-grade students are working on an experiment and writing down their discoveries.
Which of the following should the teacher be doing as the students work on the
experiment?
a. conducting a demonstration as instruction
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 - answerd
Which branch of science would a game warden most likely employ?
a. Physics
b. Astronomy
c. Chemistry
d. Ecology - answerd
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 - answerd
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. - answerc
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 - answerd
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 - answera
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 - answerb
Which of the following scientists won two Nobel Prizes, one in physics and one in
chemistry, and discovered the elements Radium and Polonium?
a. Marie Curie
b.Dmitri Mendeleev
c. Rosalind Franklin
d. Antoine Lavoisier - answera
Which order of steps correctly illustrates the process of risk assessment?
a. predict an outcome, conduct research, identify problems, interpret results, make
decisions
b. make decisions, identify problems, conduct research, predict an outcome, interpret
results
c. make decisions, interpret results, conduct research, predict an outcome, identify
problems
d. identify problems, predict an outcome, conduct research, interpret results, make
decisions - answerd
Which of the following is an example of risk assessment for societal advancement in
science?
a. An agent of the Environmental Protection Agency performs an Environmental Impact
Assessment prior to the construction of a new bridge.
b. A dog breeder avoids breeding two merle dogs together in order to avoid blind
puppies.
c. A chemist wears safety glasses at all times in the lab.
d. A farmer milks his cows twice a day to prevent them from getting sick. - answera
Fifth-grade students are working on an experiment and writing down their discoveries.
Which of the following should the teacher be doing as the students work on the
experiment?
a. conducting a demonstration as instruction
