Multiple Choice
Identify the
choice that best completes the statement or answers the question.
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1.
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Scientists must analyze the results of an experiment before they form
a(n)
a. | hypothesis. | b. | experiment. | c. | control. | d. | conclusion. |
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2.
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The graph below shows the number of students receiving A's by grade at
Ferndale Middle School. 
Which of the following statements best describes the
data in the graph above? a. | 8th grade students earn four times as many A’s as 6th grade
students | b. | 8th grade students have easier classes than 6th and 7th grade
students | c. | 7th grade students have a significantly larger number of A’s compared to 6th
grade students | d. | 6th grade students have six less A’s compared to 8th grade
students |
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3.
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Jimmy wanted to design an experiment to test the impact of various activities on
one’s heart rate. Which of the following will likely give the most reliable and
comparable data?
a. | have ten different people participate in an aerobic activity, measure their heart
rates after 15 minutes, and compare the data | b. | have five different people perform a variety of
activities, check their heart rates after performing each activity, and compare
data | c. | conduct a survey to see which activities people consider most helpful for
cardiovascular health | d. | go for a long jog, stop every five minutes to
record your heart rate, and see how quickly it rises |
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4.
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The following table shows the number of students interested in a particular
subject. What type of display would best represent the data? Subject | Number of Students | English | 20 | Biology | 22 | Physics | 10 | History | 36 | Math | 37 | | |
a. | a circle graph | b. | a bar graph | c. | a line
graph | d. | a stem-and-leaf plot |
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5.
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To test their hypotheses, scientists
a. | gather research/information. | b. | find a question or problem of
interest. | c. | speak with other scientists. | d. | perform
experiments. |
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6.
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A trial explanation or educated “guess” is known as a(n)
a. | hypothesis. | b. | independent variable. | c. | dependent
variable. | d. | observation. |
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7.
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The following chart represents results from an experiment.  What is the dependent variable in the experiment? a. | the number of seeds that germinate in five days | b. | the number of seeds
in each container | c. | the amount of moisture/water in each
container | d. | there is no dependent variable in the experiment |
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8.
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When a scientific theory has been tested many times and is generally accepted as
true, it may be called a(n)
a. | hypothesis | b. | conclusion | c. | law | d. | experiment |
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9.
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What type of display would best show the change in the number of students at
your school each year for the last five years?
a. | circle graph | b. | bar graph | c. | line
graph | d. | box-and-whisker plot |
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10.
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Elizabeth conducts an experiment to learn if boys are better at video games than
girls. She organizes a gathering with three male friends and three female friends. At
this gathering she has the boys and girls compete against each other in three different video games
and she records the number of wins for each group. Elizabeth has defined her _________ as the
number of times a group (boys or girls) wins a video game, and her __________ as gender.
a. | constant variable; indepedent variable | b. | dependent variable; independent
variable | c. | independent variable; dependent variable | d. | dependent variable;
constant variable |
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11.
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What are the factors that are kept the same in both the experimental and control
group?
a. | observations | b. | hypotheses | c. | variables | d. | constants |
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12.
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The following graph represents a beetle’s movement.  During what time span was the beetle not moving? a. | 0 minutes ® 4 minutes | b. | 6 minutes ® 14 minutes | c. | 4 minutes ® 6
minutes | d. | 14 minutes ® 16
minutes |
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13.
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Before you conduct an experiment, which of the following should you do?
a. | research the topic thoroughly | b. | write a conclusion | c. | analyze your
data | d. | share results with others |
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14.
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Kristen uses a spring scale to make force measurements during a pulley
lab. Which of the following would best describe Kristen’s measurements?
a. | inferences | b. | constants | c. | qualitative
data | d. | quantitative data |
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15.
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What skill is a scientist using when she listens to the sounds that whales
make?
a. | interpreting data | b. | developing hypotheses | c. | making
observations | d. | drawing conclusions |
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16.
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In a controlled experiment, a scientist is studying how long it takes parachutes
of different sizes to fall to the ground. What is the manipulated variable?
a. | the size of the parachute | b. | the height from which the parachute is
dropped | c. | the size of the object carried by the parachute | d. | the time it takes
for the parachute to drop |
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17.
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The graph below shows the relationship between the time of day and the
amount of carbon dioxide in a pond.  Which of these best
describes the relationship? a. | there is more carbon dioxide released by animals later in the day | b. | there is more carbon
dioxide used up by algae later in the day | c. | during the morning hours, there is less carbon
dioxide found in the pond | d. | during the morning hours, there is less carbon
dioxide released by fish |
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18.
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A scientist testing the effects of video-game play on academic success has three
groups of 100 students (300 total students) take part in his experiment. Which of the following
would be the experiment’s control group?
a. | the group of 100 students who play video games for over 15 hours a
week | b. | the group of 100 students who play video games between 5-10 hours a
week | c. | the group of 100 students who never play video games | d. | The experiment does
not have a control group |
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19.
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Which of the following could be used to collect background information or
research?
a. | books/journals | b. | surveys | c. | the
internet | d. | All of the above |
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20.
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The graph below shows the number of students participating in clubs at Oakview
Middle School.  Which statement most accurately
describes the data in the graph below? a. | one can observe that photography is the most popular club | b. | one can infer
that photography is the most popular club | c. | one can observe that science is the
least interesting club | d. | no inferences can be made based on the data in
the graph |
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