Name: 
 

Scientific Method Test



Multiple Choice
Identify the choice that best completes the statement or answers the question.
 

 1. 

Scientists must analyze the results of an experiment before they form a(n)
a.
hypothesis.
b.
experiment.
c.
control.
d.
conclusion.
 

 2. 

The graph below shows the number of students receiving A's by grade at Ferndale Middle School.

mc002-1.jpg            

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
 

 3. 

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
 

 4. 

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
 

 5. 

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.
 

 6. 

A trial explanation or educated “guess” is known as a(n)
a.
hypothesis.
b.
independent variable.
c.
dependent variable.
d.
observation.
 

 7. 

The following chart represents results from an experiment.

  mc007-1.jpg

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
 

 8. 

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
 

 9. 

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
 

 10. 

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
 

 11. 

What are the factors that are kept the same in both the experimental and control group?
a.
observations
b.
hypotheses
c.
variables
d.
constants
 

 12. 

The following graph represents a beetle’s movement.

  mc012-1.jpg

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
 

 13. 

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
 

 14. 

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
 

 15. 

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
 

 16. 

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
 

 17. 

The graph below shows the relationship between the time of day and the amount of carbon dioxide in a pond.

  mc017-1.jpg

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
 

 18. 

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
 

 19. 

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
 

 20. 

The graph below shows the number of students participating in clubs at Oakview Middle School. 

mc020-1.jpg

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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