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Variable Review
Test Description: Variable review
Instructions: Answer all questions to get your test result.
1) Identify the independent variable: If I take an afternoon nap, then I will focus more.
A
Nap or no nap
B
Time of day
C
Focus ability
D
Location of the nap
2) Identify the dependent variable: If you drink energy drinks, then you will be more aggressive.
A
Type of energy drink
B
Drinking energy drinks
C
Aggressive behavior
D
The people
3) Identify the independent variable: If people spend more time on social media, then they read less books.
A
Time spent on social media
B
Time spent reading
C
The social media site
D
People being tested
4) Identify the dependent variable: If you exercise more, then you will loose weight.
A
Time spent exercising
B
The people exercising
C
Weight loss
D
Exercise equipment
5) Identify the control variable: If you eat breakfast in the morning, then you will be more alert at school.
A
Type of breakfast
B
Eating breakfast or not
C
Tuesday
D
Alertness
6) Identify the independent variable: Students watch a cartoon alone and then with a group. After each time they rate how funny the cartoon was.
A
The cartoon
B
How funny the cartoon is
C
The people
D
Watching the cartoon alone or with others
7) Identify the dependent variable: Tammy watered one group of sunflowers with a salt water solution and another group of sunflowers with pure water. After 3 weeks she recorded the plants height.
A
Type of plant
B
Sunlight
C
Growth of the plant
D
Salt water or pure water
8) Identify the independent variable: One tank of goldfish is fed the normal amount of food once a day, a second tank is fed twice a day, and a third tank is fed four times a day during a six week period. The fish's weight is recorded daily.
A
Weight of fish
B
Type of fish
C
Amount of food
D
Feeding times
9) Identify the control variable: If the air temperature is warmer, then the crickets will chirp louder.
A
Wednesday
B
Number of crickets
C
Volume of chirp
D
Air temperature
10) Which variable is purposely changed to test the hypothesis?
A
Constant
B
Dependent
C
Independent
D
Control
11) Which variable is what we want to see happen in the experiment?
A
Consant
B
Independent
C
Dependent
D
Control
12) Which is the variable that you want to keep the same in the experiment?
A
Control
B
Dependent
C
Special
D
Independent
*select an answer for all questions
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