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Scientific Variables & Graphing Review

Total questions: 40

Worksheet time: 2hrs 0mins

Name
Class
Date
1.

In an experiment, the variable you change is called the...

a)

independent

b)

dependent

c)

control

d)

spam

2.

These variables keep the experiment fair by keeping things the same...

a)

independent

b)

dependent

c)

control

d)

the law

3.

In your experiment, the thing you measure is called the...

a)

independent

b)

dependent

c)

control

d)

ruler

4.

Which variable is the data that you measure and record in the lab?

a)

independent

b)

dependent

c)

control

d)

math

5.

True or False: a test may have more than one independent variable

a)

true

b)

false

6.

Diego wants to know how drinking milk affects how tall Dora grows. Which is the independent variable?

a)

Drinking milk.

b)

Diego's growth.

c)

Dora's growth.

d)

Chocolate or plain milk.

7.

Does the distance Manny kicks the soccer ball affect how well he tests in math? What is the dependent variable?

a)

How far he kicks the soccer ball.

b)

The type of soccer ball.

c)

How well Manny does on his math test.

d)

How tall Manny is.

8.

What would the independent variable be in an experiment testing which type of paper airplane goes the furthest?

a)

the type of paper used.

b)

the distance each plane flies.

c)

how hard the plane is thrown.

d)

the type of paper airplane.

9.

An experiment is performed on plants to see how different liquids affect plant growth. Each plant in the experiment is given a different liquid. Each plant has the same amount of sunlight, soil and listens to the same music. What is the independent variable?

a)

the type of plant

b)

the type of liquid

c)

the type of music

d)

the amount of liquid

10.

An experiment is performed on plants to see how different liquids affect plant growth. Each plant in the experiment is given a different liquid. Each plant has the same amount of sunlight, soil and listens to the same music. What is the dependent variable?

a)

the amount of liquid

b)

the amount of sunlight

c)

the growth of the plant

d)

the volume of the music

11.

Which variable is the one being tested?

a)

independent

b)

dependent

c)

control

12.

How does the amount of sunlight each tomato plant gets, affect the number of tomatoes that grow on them?

The amount of sunlight is...

a)

independent variable

b)

dependent variable

c)

controlled variable (constant)

13.

How does the type of music playing affect a person's heartrate?

A person's heartrate is...

a)

independent variable

b)

dependent variable

c)

controlled variable (constant)

14.

Which type of stain remover can remove a grass stain the most?

The amount of stain remover you use is...

a)

independent variable

b)

dependent variable

c)

controlled variable (constant)

15.

How does adding coffee grounds to soil affect how tall a plant grows?

The type of plant is...

a)

independent variable

b)

dependent variable

c)

controlled variable (constant)

16.

A teacher gives one group of students candy before a test, and does not give another group of students candy before a test. He compares their scores to see if candy before a test improves their grades.

What is the independent variable?

a)

The student test scores

b)

The test they are taking

c)

Whether or not they get candy.

17.

You drop a tennis ball from three different heights: 1 meter, 2 meters, and 3 meters above the ground. You measure to see how high the ball bounces.

What is a controlled variable (constant)?

a)

The ball you use

b)

The height you drop the ball from

c)

The height the ball bounces

18.

What type of container keeps my turkey sandwich the coldest in my lunch box during the school day? Plastic container, plastic bag, or aluminum foil?

What is the dependent variable?

a)

The type of container

b)

The sandwich

c)

The temperature of my sandwich

19.

What type of dog food will help my very skinny dog gain the most weight?

What is a controlled variable (constant)?

a)

The type of dog food

b)

The amount of food given to the dog

c)

The amount of weight gained

20.

In any experiment, the independent variable ______________.

a)

remains the same to not mess up the experiment

b)

is purposely changed to test the hypothesis

c)

is known by the scientist before doing the experiment

21.

The variables in an experiment that stay the same are the -

a)

Independent Variable

b)

Dependent Variable

c)

Constants

d)

Control

22.

What are the constant variables?

a)

what we are changing or testing

b)

what we are observing or measuring

c)

what we keep the same to make the experiment fair

23.
Why do we want to test one variable at a time?
a)
Because it is hard to setup a data table with more
b)
To know what is causing the changes
c)
It is what has always been done
d)
No one really knows
24.
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
25.
Mr. S set up an experiment to see how the mass of a ball affects the distance it rolls off a ramp. Identify the independent variable.
a)
Distance traveled by the ball
b)
Height of the ramp
c)
Mass of the ball
26.
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
27.
Squidward found new reeds to tryout for his clarinet.  He used an APPLAUSOMETER to measure applause after playing  Under the Sea with each reed.  The results were put in the table.
What was the independent variable?
a)
The Song
b)
The Reed
c)
The Applause
28.
Variable that is MEASURED or OBSERVED; it DEPENDS on the independent variable.
a)
Control Variable
b)
Variable
c)
Dependent Variable
d)
Independent Variable
29.
How do scientists know that their data is accurate? 
a)
Follow their procedure exactly and control all their variables
b)
Compare results with other scientists that tested the same thing and get similar results
c)
Repeat the experiment and get similar results
d)
All of the choices are correct.
30.
Why is the scientific method important?
a)
All of the answers have the correct information.
b)
to give people/scientists a way to answer questions that they have about the world.
c)
By following the steps in order, scientists are more likely to get valid, accurate results.
d)
When they write a detailed procedure, it allows other scientists to be able to repeat their experiment.
31.
Mrs. LaRue wants to know which brand of paper towels is the strongest.  In this experiment, what is the most important CONTROL variable? 
a)
Stength 
b)
Brand of paper towel
c)
Weight
d)
Environment
32.
The variable that you measure is the -
a)
IV
b)
DV
c)
Constant
d)
Repeated Trial
33.
The variables in an experiment that stay the same are the - 
a)
IV
b)
DV
c)
Constants
34.
According to the pie chart, the United States relies on fossil fuels for about what percentage of its energy?
a)
30%
b)
45%
c)
60%
d)
80%
35.
This type of graph is used to _______
a)
Compare different "groups"
b)
Compare something over time
36.
The Independent/Manipulated Variable goes on the ___ axis
a)
x
b)
y
37.
The Dependent/Responding Variable goes on the ___ axis
a)
x
b)
y
38.
Which type of graph would you create for this data table?
a)
Bar
b)
Line
39.
Which type of graph would you create for this data table?
a)
Bar
b)
Line
40.
This type of graph is used to _______
a)
Compare different "groups"
b)
Compare something over time

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