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WorksheetsVariables in a Scientific Investigation
Total questions: 11
Worksheet time: 10mins
Name
Class
Date
1.
A student wanted to test the effect of candy on test grades. What would be the dependent variable?
a)
candy
b)
test grades
c)
students
d)
no candy
2.
What are the three kinds of variables that you need to identify in your experiments?
a)
independent, controlled, dependent
b)
independent, dependent, identical
c)
identical, controlled, sample
3.
This variable in an experiment is the one being deliberately changed by the scientist.
a)
dependent variable
b)
independent variable
c)
data
d)
control group
4.
An experiment is performed on plants to see how different liquids affect plant growth. Each plant in the experiment is given a different liquid; water, apple juice, or milk. Each plant has the same amount of soil, sunlight, and listens to the same music. In this investigation, what is the dependent variable?
a)
Type of plant
b)
Water, apple juice, milk
c)
Plant growth
d)
Color of the plant's leaves
5.
Mr. Krabbs is trying a new money making scheme. On Tuesdays he is selling his crabby patties on multicolored buns. He usually averages 25 customers per day. On Tuesdays he now averages 27 customers.
What was the dependent variable?
What was the dependent variable?
a)
The customers
b)
The crabby patty
c)
The multicolored buns
d)
The number of customers
6.
Suzan usually walks to school. She wants to see if running to school will help her do better on quizzes in first period. (What is her Independent Variable?)
a)
How far she walks
b)
Running to school
c)
Walking to school
d)
How well she does on quizzes
7.
Which variable do you measure?
a)
Independent
b)
Dependent
8.
Which variable do you change in an experiment?
a)
Dependent
b)
Independent
9.
The variables in an experiment that stay the same are the -
a)
IV
b)
DV
c)
Constants
10.
A student wants to test the effects of type of exercise on heart rate. What is the dependent variable?
a)
heart rate
b)
type of exercise
c)
amount of exercise
d)
time of day exercise occurs
11.
A student is planning an experiment to find out how the height from which he drops a ball affects how high the ball bounces. The dependent variable is the _____.
a)
Diameter of the ball
b)
Force acting on the ball
c)
Height that the ball bounces
d)
Height from which the ball is dropped
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