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Scientific Method And Variables
Test Description: Sci. method steps and defining variables.
Instructions: Answer all questions to get your test result.
1) The hypothesis in a scientific investigation is
A
the last part of the experiment.
B
an educated guess about the outcome of the experiment.
C
a list of procedures.
D
always right.
2) In an experiment, there should be only one _________. Everything else should be a ________.
A
independent variable.......constant variable.
B
constant variable.........independent variable.
3) Cause is to effect as _____ is to _____
A
dependent... independent
B
constant... responding
C
independent... constant
D
independent... dependent
4) Which is the first step in the scientific method?
A
draw a conclusion
B
ask a question
C
form a hypothesis
D
analyze data
5) The independent variable is also called the
A
responding variable
B
constant variable
C
conclusion
D
manipulated variable
6) Which variable is affected by the independent variable?
A
manipulated variable (independent)
B
responding variable (dependent)
C
constant variable
7) A farmer applies different fertilizer to his plants to see which will make the plants grow the highest. What is the independent variable?
A
different plants
B
height of plants
C
amount of water
D
type of fertilizer
8) A farmer applies different fertilizer to his plants to see which will make the plants grow the highest. What is the dependent variable?
A
different plants
B
amount of water
C
height of plants
D
type of fertilizer
9) In a study about headaches, doctors gave patients Aleve, Tylenol, and Advil to see which medication would relieve the headache pain the fastest. The doctors timed how long it took the medication to work. What is the Independent variable?
A
Amount of time until pain was relieved
B
Amount of medication
C
Types of pain reliever
D
Number of headaches
10) In a study about headaches, doctors gave patients Aleve, Tylenol, and Advil to see which medication would relieve the headache pain the fastest. The doctors timed how long it took the medication to work. What is the Dependent variable?
A
Number of headaches
B
Amount of medication
C
Amount of time until pain was relieved
D
Types of pain reliever
11) The independent variable is the variable that you change.
A
False
B
True
12) The dependent variable is the one you measure.
A
False
B
True
13) How many independent variables can you have in an experiment so that your investigation is valid?
A
As many as you want!
B
Three
C
Two
D
One
14) The variables or factors in an experiment that must stay the same.
A
Constant Variables
B
Independent Variable
C
Dependent Variable
*select an answer for all questions
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