NAME:
_____________
Independent and Dependent
Variable Assignment
1.
In a study to
determine whether the amount of time a student sleeps affects test scores,
What
is the independent variable?
What
is the dependent variable?
2.
You want to
compare brands of paper towels to see which holds the most liquid.
What
is the independent variable?
What
is the dependent variable?
3.
If you want to
know whether caffeine affects your appetite,
What is the independent variable?
What is the dependent variable?
4.
You want to
determine whether a chemical is essential for rat nutrition, so you design an
experiment.
What
is the independent variable?
What
is the dependent variable?
NAME:
____KEY____
Independent and Dependent
Variable Assignment
5.
In a study to
determine whether the amount of time a student sleeps affects test scores, the independent variable is the amount of time spent
sleeping while the dependent variable is the test score.
6.
7.
You want to
compare brands of paper towels to see which holds the most liquid. The
independent variable in your experiment would be the brand of paper towels. The
dependent variable would be the amount of liquid absorbed by the paper towel.
8.
9.
10.
If you want to
know whether caffeine affects your appetite, the presence or absence of a given
amount of caffeine would be the independent variable. How hungry you are would
be the dependent variable.
11.
12.
You want to
determine whether a chemical is essential for rat nutrition, so you design an
experiment. The presence or absence of the chemical is the independent
variable. The health of the rat (whether it lives and can reproduce) is the
dependent variable. If you determine the substance is necessary for proper nutrition,
a follow-up experiment might determine how much of the chemical is needed.
Here, the amount of the chemical would be the independent variable, and the
rat's health would be the dependent variable.