NATURE OF SCIENCE EXAM QUESTIONS WITH COMPLETE
SOLUTIONS VERIFIED AND GRADED A+
A group of scientists has been asked to conduct a study on how an oil spill will
affect the surrounding sea life. The scientists decide that the best way to
complete the study is to create a model. Which of the following is the most likely
reason that the scientists will use a model instead of creating an actual oil spill
study?
a. They think using a model will provide them with more accurate results.
b. They can study the effects of an oil spill without harming surrounding sea life.
c. They can use different species that the plants and animals found in the real
ecosystem.
d. They expect the oil spill in their model to have a much greater effect than an oil
spill in the natural environment.
b
Denise and David are testing how plants respond to fertilizer. They use three
plants for the experiment. The first is given a cup of Fast Grow fertilizer with no
water. The second is given a teaspoon of Sunlight fertilizer with a cup of water.
The third plant is given no fertilizer with a cup of water.
Denise and David will not be able to draw a valid conclusion from their result.
,Which of the following statements explains why?
a. There are not enough different types of plants.
b. There is no test variable (independent variable).
c. Results of the experiment need to be presented in a graph.
d. More than one test variable (independent variable) has been changed in the
experiment.
d
. Jason wants to investigate how weather influences the temperature of soil. He
takes measurements at the same time and same place in a field for five days and
records his results. He also records the weather conditions at the same time of
each measurement.
Which of the following best describes Jason's investigation?
a. It is a successful experiment that tests a hypothesis.
b. It is a reliable experiment because he controls variables except for one test
variable (independent variable).
c. It is an investigation that tests an idea without manipulating a test variable
(independent variable).
d. It is a successful investigation because the data proved that weather
conditions influence soil temperature.
c
Jules wanted to know whether the eating behavior of goldfish is affected by
music. He set up a fish tank. Every day, Jules played music for the fish and
, measured how much the fish ate.
What is Jules missing from this experiment?
a. A control group
b. A measurable result
c. Different types of fish
d. An outcome variable (dependent variable)
A
A group of students want to investigate the effects of plant moisture on the
growth of caterpillars. The students fill three identical boxes with an equal
number of a kind of leaf that caterpillars eat. The students keep the leaves in the
first box dry, spray the leaves in the second box with two sprays of water, and
spray the leaves in the third box with four sprays of water. The students then add
four caterpillars to each box. Every day the length of each caterpillar is measured
and recorded, and the results are averaged. What is the test variable
(independent variable) in this experiment?
a. The number of leaves put in each box
b. The amount of water put on the leaves
c. The number of caterpillars in each box
d. The change in length of the caterpillars
b
The graph below shows which wavelengths, in nanometers (nm), and
corresponding colors of light are absorbed by the plant molecule chlorophyll a.
SOLUTIONS VERIFIED AND GRADED A+
A group of scientists has been asked to conduct a study on how an oil spill will
affect the surrounding sea life. The scientists decide that the best way to
complete the study is to create a model. Which of the following is the most likely
reason that the scientists will use a model instead of creating an actual oil spill
study?
a. They think using a model will provide them with more accurate results.
b. They can study the effects of an oil spill without harming surrounding sea life.
c. They can use different species that the plants and animals found in the real
ecosystem.
d. They expect the oil spill in their model to have a much greater effect than an oil
spill in the natural environment.
b
Denise and David are testing how plants respond to fertilizer. They use three
plants for the experiment. The first is given a cup of Fast Grow fertilizer with no
water. The second is given a teaspoon of Sunlight fertilizer with a cup of water.
The third plant is given no fertilizer with a cup of water.
Denise and David will not be able to draw a valid conclusion from their result.
,Which of the following statements explains why?
a. There are not enough different types of plants.
b. There is no test variable (independent variable).
c. Results of the experiment need to be presented in a graph.
d. More than one test variable (independent variable) has been changed in the
experiment.
d
. Jason wants to investigate how weather influences the temperature of soil. He
takes measurements at the same time and same place in a field for five days and
records his results. He also records the weather conditions at the same time of
each measurement.
Which of the following best describes Jason's investigation?
a. It is a successful experiment that tests a hypothesis.
b. It is a reliable experiment because he controls variables except for one test
variable (independent variable).
c. It is an investigation that tests an idea without manipulating a test variable
(independent variable).
d. It is a successful investigation because the data proved that weather
conditions influence soil temperature.
c
Jules wanted to know whether the eating behavior of goldfish is affected by
music. He set up a fish tank. Every day, Jules played music for the fish and
, measured how much the fish ate.
What is Jules missing from this experiment?
a. A control group
b. A measurable result
c. Different types of fish
d. An outcome variable (dependent variable)
A
A group of students want to investigate the effects of plant moisture on the
growth of caterpillars. The students fill three identical boxes with an equal
number of a kind of leaf that caterpillars eat. The students keep the leaves in the
first box dry, spray the leaves in the second box with two sprays of water, and
spray the leaves in the third box with four sprays of water. The students then add
four caterpillars to each box. Every day the length of each caterpillar is measured
and recorded, and the results are averaged. What is the test variable
(independent variable) in this experiment?
a. The number of leaves put in each box
b. The amount of water put on the leaves
c. The number of caterpillars in each box
d. The change in length of the caterpillars
b
The graph below shows which wavelengths, in nanometers (nm), and
corresponding colors of light are absorbed by the plant molecule chlorophyll a.
