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Worksheets

Variables

Total questions: 166

Worksheet time: 3hrs 12mins

Name
Class
Date
1.

The ___ variable is what changes in an experiment.

a)

Controlled

b)

Independent

c)

Dependent

2.

All variables in an experiment must be changed.

a)

True

b)

False

3.

A ____ variable remains constant, or does not change.

a)

Controlled

b)

Independent

c)

Dependent

4.

A study was done to find if different tire treads affect the braking of a car. What is the independent variable?

a)

Car

b)

Brakes

c)

Tire treads

d)

Seat belts

5.

Lemon trees receiving the most water produced the most lemons. What is the dependent variable?

a)

Amount of water

b)

Growth of the lemon tree

c)

How many lemons were produced

d)

Amount of sunlight

6.

The height of bean plants depend on the amount of water they received. What is the independent variable?

a)

Amount of water

b)

Height of the plants

c)

How many beans were produced

d)

Temperature the plants were in

7.

The higher the temperature of air in the oven, the faster a cake will bake. Which is a controlled variable?

a)

Type of oven used

b)

Type of cake used

c)

The temperature

d)

Time for cake to bake

8.

The dependent variable depends on the controlled variables.

a)

True

b)

False

9.

The ____ variable is what is observed during the experiment.

a)

Independent

b)

Dependent

c)

Controlled

10.

The temperature of water was measured at different depths in a pond. The temperature of water is the dependent variable.

a)

True

b)

False

11.

Which variable do you change for a scientific investigation?

a)

Dependent variable

b)

Independent variable

c)

Controlled variable

d)

Varying variable

12.

Which variable reacts to what you change in a scientific investigation?

a)

Dependent variable

b)

Independent variable

c)

Controlled variable

d)

a varying variable

13.

What is a hypothesis?

a)

the right answer in an experiment

b)

the wrong answer in an experiment

c)

an educated guess; what you think will happen

d)

A really energetic paper

14.

What is the independent variable in this experiment?

Will a person wake up earlier if they drink water?

a)

the person

b)

the time it takes for a person to wake up

c)

the water

d)

none of these

15.

What is the dependent variable in this experiment?

Does the type of pen determine how fast you write?

a)

the type of pen

b)

how fast you write

c)

the person writing

d)

none of these

16.

What is the independent variable in the experiment?

Mr. Block wants to see which treat causes her cat, Whiskers, to jump the highest.

a)

the type of treat

b)

how high Whiskers jumps

c)

the type of cat

d)

Mr. Block

17.

Why do we only test one variable at a time?

a)

It is too much work to use more than one variable

b)

It is how it's always been done

c)

We want to know what is causing the change that occurs

d)

There is no reason

18.

Generally, how many times should each trial in an experiment be repeated?

a)

1

b)

2

c)

3

d)

5

19.

When testing your ability to jump different distances, which of the following could be the controlled variable?

a)

the length of the jump

b)

the size of your muscles

c)

the time of day you train

d)

none of these

20.

In an experiment where you see how the height of a roller coaster track affects the speed of a roller coaster, the type of roller coaster is what type of variable?

a)

dependent variable

b)

independent variable

c)

controlled variable

d)

none of these

21.
Research question: does the distance a person kicks a soccer ball effect how well they will do on their math test.  What is the dependent variable?
a)
How far they kick the soccer ball
b)
who the person is
c)
how well they do on the math test
d)
Type of soccer ball.
22.
When experimenting with the growth of a plant, a scientist uses three (of the same type of) plants, two different fertilizers, equal light, and equal water. What type of variable is the fertilizer?
a)
Dependent
b)
Independent
c)
Control
d)
Compound
23.
Which variable depends on what is done at the beginning of an experiment?
a)
Dependent
b)
Independent
c)
Control
d)
Following
24.
What would the INDEPENDENT variable be in an experiment testing which types of paper airplane goes furthest?
a)
the paper used
b)
the type of paper airplane
c)
the distance of each plane's flight
d)
how hard the plane is thrown
25.
Research Question: Does the type of gasoline put in a car effect how fast the car can drive. What is the independent variable?
a)
Type of gasoline
b)
which car the gas is put into
c)
how fast the car can drive
d)
how much gas is put into the car
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.
In a controlled experiment, how many variables can be worked with at a time? 
a)
one
b)
none
c)
two or more
d)
how ever many makes sense.
28.
The part of the experiment that remains the same for the control and experimental group.
a)
constants
b)
control
c)
independent
d)
dependent
29.
Mr. S. sets 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
d)
weight of the ball
30.
When experimenting with the growth of a plant, a scientist uses three (of the same type of) plants, two different fertilizers, equal light, and equal water. What type of variable is the fertilizer?
a)
Dependent
b)
Independent
c)
Control
d)
Compound
31.

This variable is the one thing that changed on purpose...

a)

Dependent Variable

b)

Control

c)

Independent Variable

32.

What is the DEPENDENT variable (effect) in this experiment?


"Does eating breakfast improve test scores?"

a)

eating breakfast or not

b)

the grade you got on the test

c)

what time you get up in the morning

d)

how tasty the breakfast is

33.

You are testing how the amount you water a plant affects its growth. What would be the INDEPENDENT VARIABLE in this experiment.

a)

They type of pot you put the plants in.

b)

The amount you water each plant.

c)

The amount of sunlight the plants get.

d)

The amount the plant grows.

34.
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, the independent variable is ...
a)
The type of plant
b)
The amount of sunlight
c)
The type of music
d)
The type of liquid
35.

Mr. Pransky wants to see how different surfaces affect how high a tennis ball can bounce. What is the independent variable?

a)

the different surfaces

b)

using the same ball

c)

how high they bounce

36.

A student wants to test the hypothesis of "If salt is added to water then the boiling point of water will decrease (go down)." What is the independent variable?

a)

Whether salt is added or not

b)

Boiling Point

c)

Amount of water

37.

If you were testing the time it took for objects of different sizes to reach the ground after being dropped from 30 feet in the air, which of these would be the DEPENDENT VARIABLE?

a)

The time it takes for each object to hit the ground.

b)

The size of each object.

c)

The type of object you use.

d)

The height you drop the object from

38.

Why do we use graphs in science?

a)

to record and display data

b)

to show trends in data

c)

to predict what will happen if we extend the experiment

d)

all of these are correct

39.

Sadie is testing how the age of a seed affects how fast plants grow. Look at the picture to see if you can figure out what makes her experiment unfair. Mark all that apply.

a)

She used different types of seeds/plants.

b)

The plants are in different pots.

c)

She did not plant very many plants.

d)

Seed age might not make a difference.

40.

What is the manipulated variable?

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

41.

What is the responding variable?

a)

what we are changing or testing

b)

what we are observing or measuring

c)

what we are keeping the same to make the experiment fair

42.

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

43.

Scientific Question: Does being tardy impact test scores?

What is the manipulated variable?

a)

test scores

b)

the time a student arrives to class

c)

amount of time to complete test

44.

Scientific Question: Does being tardy impact test scores?

What is the responding variable?

a)

test scores

b)

the time a student arrives to class

c)

amount of time to complete test

45.

Scientific Question: Does being tardy impact test scores?

What is one of the constant variables?

a)

test scores

b)

the time a student arrives to class

c)

amount of time to complete test

46.

Scientific Question: Will a person fall asleep faster if they listen to music?

What is the manipulated variable?

a)

music

b)

time to fall asleep

c)

person

47.

Scientific Question: Will a person fall asleep faster if they listen to music?

What is the responding variable variable?

a)

music

b)

time to fall asleep

c)

person

48.
Scientific Question:  Will a person fall asleep faster if they listen to music?
What is the control variable?
a)
music
b)
time to fall asleep
c)
person
49.

Jamal is trying to perfect his basketball shots. He thinks getting closer to the basketball hoop before throwing the ball will help him score more points. In this situation, what is the manipulated variable?

a)

How close Jamal gets to the hoop

b)

How high Jamal jumps when he shoots

c)

How many points he scores

d)

How hard he throws the ball

50.
Jamal is trying to perfect his basketball shots. He thinks getting closer to the basketball hoop before throwing the ball will help him score more points. In this situation, what is the responding variable?
a)
How close Jamal gets to the hoop
b)
How high Jamal jumps when he shoots
c)
How many points he scores
d)
How hard he throws the ball
51.

In a study to determine whether how long a student sleeps affects test scores, the independent variable is _________________________________.

a)

the test scores

b)

the amount of sleep

52.

You want to know which brand of fertilizer is best for your plants. What is the independent variable?

a)

the fertilizer

b)

the health of your plants

53.

You want to compare brands of paper towels, to see which holds the most liquid. Which is the independent variable?

a)

the brand of paper towel

b)

the amount of water

54.

You suspect the amount of television a person watches is related to their age. What is the independent variable?

a)

age

b)

the amount of tv time

55.

You think rising sea temperatures might affect the amount of algae in the water.

What is the independent variable?

a)

the water temp

b)

the amount of algae

56.

You want to know which brand of microwave popcorn pops the best.

What is the independent variable?

a)

brand of popcorn

b)

number of kernels popped

57.

In a study to determine whether how long a student sleeps affects test scores, the dependent variable is ______________.

a)

the test score

b)

the amount of sleep

58.

You want to know which brand of fertilizer is best for your plants.What is the dependent variable ________________.

a)

The health of the plants

b)

the type of fertilizer

59.

You want to compare brands of paper towels, to see which holds the most liquid. Which is the dependent variable?

a)

the brand of paper towel

b)

the amount of water

60.

You suspect the amount of television a person watches is related to their age. What is the dependent variable?

a)

age

b)

the amount of tv time

61.

You think rising sea temperatures might affect the amount of algae in the water.

What is the dependent variable?

a)

water temp

b)

amount of algae

62.

You want to know which brand of microwave popcorn pops the best.

What is the dependent variable?

a)

brand of popcorn

b)

the amount of kernels popped

63.

The information you collect in an experiment in order to answer a question is called

a)

Charts

b)

Graphs

c)

Data

d)

Hypotheses

64.

This type of variable is what you DON'T change in a lab

a)

Control

b)

Independent

c)

Dependent

65.

A graph can be described as all of the following EXCEPT:

a)

A tool to be interpreted only by trained scientists and mathematicians

b)

A good way to describe the relationship between to variables

c)

A mathematical design

d)

A model

66.

A variable that is unchanged throughout the experiment is the:

a)

Controlled Variable

b)

Experimental Variable

c)

Independent Variable

d)

Dependent Variable

67.

The independent Variable in a lab can be described as the variable:

a)

Represented on the X Axis

b)

Causing the change in the dependent Variable

c)

Over which a scientists usually has direct control when designing an experiement

d)

All of the above

68.

The independent Variable is found on the:

a)

X Axis

b)

Y Axis

69.

The dependent Variable is found on the:

a)

X Axis

b)

Y Axis

70.

The independent Variable is:

a)

What you keep the same in the experiment

b)

What you change in an experiment

c)

What you measure in an experiment

71.

Jack is doing an experiment to see which shoes help him run the fastest. What will his independent variable be?

a)

The shoes he wears

b)

The track he runs on

c)

The time of day he runs

72.

Sally is doing an experiment to see which brand of sunscreen works best. What is not a controlled variable for this experiment?

a)

The time of day she is in the sun

b)

The amount of time she is in the sun

c)

The amount of sunscreen she uses.

d)

The brand of sunscreen.

73.

The variable that is being tested, counted or measured and is responding to the independent variable is known as:

a)

Control

b)

Independent Variable

c)

Constant

d)

Dependent Variable

74.

Which brand of paper towel will absorb the most liquid? What is the dependent variable?

a)

brand of paper towel

b)

amount of water absorbed

75.

Zach wants to know if the amount of time he spends on social media has an effect on his grades. What is the independent variable?

a)

Time on social media

b)

His grades

76.

Maddie wants to determine if the weight of the dog determines the number of puppies in a litter. What is the dependent variable?

a)

type of dog

b)

number of puppies

77.

Beth wants to know if increasing her exercise will decrease the time it takes her to run a mile. What is the independent variable?

a)

Distance

b)

amount of exercise

78.

Brad sets 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)

mass of the ball

c)

height of the ramp

d)

weight of the ball

79.

Mr. Pransky wants to see how different surfaces affect how high a tennis ball can bounce. What is the independent variable?

a)

the different surfaces

b)

how high they bounce

80.
Steve wanted to see if the type of fertilizer made sunflowers grow larger. What is the independent variable 
a)
Type of fertilizer
b)
Size of sunflower
c)
type of sun flower
81.
Steve wanted to see if the type of fertilizer made sunflowers grow larger. What is the dependent variable 
a)
Type of fertilizer
b)
Size of sunflower
c)
Type of sunflower
82.
Molly investigated if the age of students caused them to be better drivers. What is the independent variable?
a)
Type of car
b)
Skill of driving
c)
Age of student
83.
Molly investigated if the age of students caused them to be better drivers. What is the dependent variable?
a)
Type of car
b)
Skill of driving
c)
Age of student
84.
Sam wanted to know if the color of the chair you sat in when taking a test affected your test grade. What is the dependent variable.
a)
Color or chair
b)
Grade on test
c)
Age of students
85.
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
86.
The part of the experiment that remains the same for the control and experimental group.
a)
constants
b)
control
c)
independent
d)
dependent
87.
When experimenting with the growth of a plant, a scientist uses three (of the same type of) plants, two different fertilizers, equal light, and equal water. What type of variable is the fertilizer?
a)
Dependent
b)
Independent
c)
Control
d)
Compound
88.
The higher the temperature of water, the faster the egg will cook.  Select the independent variable.
a)
Faster Egg Cooks
b)
Higher Temperature
89.

Carey and Justin are raising money to purchase books for the library. The more money they raise, the more books they will be able to purchase for the library.


Which of the variables is dependent?

a)

amount of money raised

b)

number of books

90.
Steve wanted to see if the type of fertilizer made sunflowers grow larger. What is the independent variable 
a)
Type of fertilizer
b)
Size of sunflower
c)
type of sun flower
91.
Steve wanted to see if the type of fertilizer made sunflowers grow larger. What is the dependent variable 
a)
Type of fertilizer
b)
Size of sunflower
c)
Type of sunflower
92.
Molly investigated if the age of students caused them to be better drivers. What is the independent variable?
a)
Type of car
b)
Skill of driving
c)
Age of student
93.
Molly investigated if the age of students caused them to be better drivers. What is the dependent variable?
a)
Type of car
b)
Skill of driving
c)
Age of student
94.
Sam wanted to know if the color of the chair you sat in when taking a test affected your test grade. What is the independent variable.
a)
Color or chair
b)
Grade on test
c)
Age of students
95.
Sam wanted to know if the color of the chair you sat in when taking a test affected your test grade. What is the dependent variable.
a)
Color or chair
b)
Grade on test
c)
Age of students
96.
Robert wanted to know if the type of phone you used gave you better or worse service. What is the independent variable. 
a)
Location of phone call
b)
Type of phone
c)
How good the service was
97.
Robert wanted to know if the type of phone you used gave you better or worse service. What is the dependent variable. 
a)
Location of phone call
b)
Type of phone
c)
How good or bad the service was
98.
Sarah wanted to find out if the size of a car tire made it a smoother ride over bumps. What is the independent variable?
a)
Size of tire
b)
How smooth the ride was over bumps
c)
Type of car
99.
Sarah wanted to find out if the size of a car tire made it a smoother ride over bumps. What is the dependent variable?
a)
Size of tire
b)
How smooth the ride was over bumps
c)
Type of car
100.
Penelope wanted to see if the temperature of the oven made cookies softer or harder. What is the independent variable.
a)
Hardness of cookie
b)
Type of oven
c)
Temperature of oven
101.
Penelope wanted to see if the temperature of the oven made cookies softer or harder. What is the dependent variable.
a)
Hardness of cookie
b)
Type of oven
c)
Temperature of oven
102.
Stacy measured the speed of 5 birds that lived around her house. What is the Independent variable?
a)
Type of Bird
b)
Speed of Bird
c)
weather outside
103.
Stacy measured the speed of 5 birds that lived around her house. What is the dependent  variable?
a)
Type of Bird
b)
Speed of Bird
c)
weather outside
104.
Mrs. Cote wanted to know if the iPhone could stand up against being dropped from different heights. She dropped them from 3 heights and saw if they broke. What is the independent variable?
a)
Drop height
b)
If they had a case on them or not
c)
If they broke
105.
Mrs. Cote wanted to know if the iPhone could stand up against being dropped from different heights. She dropped them from 3 heights and saw if they broke. What is the dependent variable?
a)
Drop height
b)
If they had a case on them or not
c)
If they broke
106.

One chicken is injected with a growth hormone while another chicken is not injected with a growth hormone. After one year, both chickens are weighed. What is the independent variable?

a)

If a chicken was injected with a growth hormone or not

b)

The weight of the chicken

c)

The type of chicken

107.

One chicken is injected with a growth hormone while another chicken is not injected with a growth hormone. After one year, both chickens are weighed. What is the dependent variable?

a)

If the chicken was injected with a growth hormone or not

b)

The weight of the chicken

c)

The type of chicken

108.

A bug repellent was sprayed on one arm. On the other arm, the bug repellent was not sprayed. After 2 hours, the number of bug bites are recorded. What is the independent variable?

a)

The type of bug repellent

b)

If an arm was sprayed with bug repellent or not

c)

The number of bug bites

109.

A bug repellent was sprayed on one arm. On the other arm, the bug repellent was not sprayed. After 2 hours, the number of bug bites are recorded. What is the dependent variable?

a)

The type of bug repellent

b)

If an arm was sprayed with bug repellent or not

c)

The number of bug bites

110.

Javier and his twin sister both have the same science exam. Javier sleeps for 9 hours the night before the exam and his sister sleeps for 6 hours. After they take the test, they both compare their test grades. What is the independent variable?

a)

The number of hours of sleep they had

b)

The type of test

c)

The test grades

111.

Javier and his twin sister both have the same science exam. Javier sleeps for 9 hours the night before the exam and his sister sleeps for 6 hours. After they take the test, they both compare their test grades. What is the dependent variable?

a)

The test grades

b)

The number of hours of sleep they had

c)

The type of test

112.

Group A decides to exercise for a month. Group B decides not to exercise during the same month. Afterwards, they measure the amount of weight that each group lost. what is the independent variable?

a)

How much weight each group lost

b)

The type of exercise

c)

If group exercises or not

113.

Group A decides to exercise for a month. Group B decides not to exercise during the same month. Afterwards, they measure the amount of weight that each group lost. what is the dependent variable?

a)

If a group exercises or not

b)

How much weight each group lost

c)

The type of exercise

114.

One math class studies for an upcoming test while another math class does not study for the same test. The test scores of the two classes are compared afterwards. What is the independent variable?

a)

The test scores

b)

If a class studies or not

c)

The type of class

115.

One math class studies for an upcoming test while another math class does not study for the same test. The test scores of the two classes are compared afterwards. What is the dependent variable?

a)

If a class studies or not

b)

The type of class

c)

The test scores

116.

One plant is given sunlight every day. Another plant of the same type is not given any sunlight. After 3 weeks, the height of each plant is measured. What is the independent variable?

a)

The type of plant

b)

If a plant receives sunlight or not

c)

How tall the plants are

117.

One plant is given sunlight every day. Another plant of the same type is not given any sunlight. After 3 weeks, the height of each plant is measured. What is the dependent variable?

a)

How tall the plants are

b)

The type of plant

c)

If a plant receives sunlight or not

118.

One plant is given sunlight for 12 hours each day. Another plant of the same type is not given any sunlight. After 3 weeks, the plants are compared to see how green each one looks. What is the independent variable?

a)

How much sunlight each plant receives

b)

How green each plant looks

c)

The type of sunlight

119.

One plant is given sunlight for 12 hours each day. Another plant of the same type is not given any sunlight. After 3 weeks, the plants are compared to see how green each one looks. What is the dependent variable?

a)

The type of sunlight

b)

How much sunlight each plant receives

c)

How green each plant looks

120.

The one factor that a scientist changes during an experiment. (It affects the results of the experiment).

a)

Controlled Variable

b)

Dependent Variable

c)

Independent Variable

121.

The variable that is measured. It is the result of the experiment.

a)

Controlled Variable

b)

Dependent Variable

c)

Independent Variable

122.

The factors that stay the same throughout the experiment.

a)

Constant

b)

Dependent Variable

c)

Independent Variable

123.

Why is it important to have only one independent variable and to control the other variables when performing science experiments?

a)

So you can tell which factor is causing the change in the experiment and get more accurate results

b)

It does not matter, you can have as many independent variables as you want.

c)

None of these answers are correct

124.

Ben makes five paper helicopters with different wing lengths. He drops them the same way from a height of two meters for five trials each. He records the amount of time it takes for each helicopter to fall to the ground.

What is the independent variable?

a)

Dropping the same way

b)

Wing Length

c)

Amount of time it takes the helicopter to hit the floor

d)

Dropping from the same height

125.

Ben makes five paper helicopters with different wing lengths. He drops them the same way from a height of two meters for five trials each. He records the amount of time it takes for each helicopter to fall to the ground.

What is the dependent variable?

a)

Dropping the same way

b)

Wing Length

c)

Amount of time it takes the helicopter to hit the floor

d)

Dropping from the same height

126.

Ben makes five paper helicopters with different wing lengths. He drops them the same way from a height of two meters for five trials each. He records the amount of time it takes for each helicopter to fall to the ground.

What are two CONSTANTS? (Select 2 answers)

a)

Dropping the same way

b)

Wing Length

c)

Amount of time it takes the helicopter to hit the floor

d)

Dropping from the same height

127.

Cindy wanted to find out how the amount of sunlight affects the growth of plants. She placed two tomato plants in 10 inch pots with potting soil and watered them ¼ cup each day. One plant was placed under a cardboard box and one was placed in the sunlight. She measured the growth of the plant each week for three weeks.

What is the independent variable?

a)

Using the same type of plant

b)

Each plant was placed in a 10 inch pot

c)

The growth of the plant

d)

One plant is in the sunlight and the other is under a box

128.

Cindy wanted to find out how the amount of sunlight affects the growth of plants. She placed two tomato plants in 10 inch pots with potting soil and watered them ¼ cup each day. One plant was placed under a cardboard box and one was placed in the sunlight. She measured the growth of the plant each week for three weeks.

What is the dependent variable?

a)

Using the same type of plant

b)

Each plant was placed in a 10 inch pot

c)

The growth of the plant

d)

One plant is in the sunlight and the other is under a box

129.

Cindy wanted to find out how the amount of sunlight affects the growth of plants. She placed two tomato plants in 10 inch pots with potting soil and watered them ¼ cup each day. One plant was placed under a cardboard box and one was placed in the sunlight. She measured the growth of the plant each week for three weeks.

What are two CONSTANTS? (Select 2)

a)

Using the same type of plant

b)

Each plant was placed in a 10 inch pot

c)

The growth of the plant

d)

One plant is in the sunlight and the other is under a box

130.
Molly investigated if the age of students caused them to be better drivers. What is the independent variable?
a)
Type of car
b)
Skill of driving
c)
Age of student
131.
Molly investigated if the age of students caused them to be better drivers. What is the dependent variable?
a)
Type of car
b)
Skill of driving
c)
Age of student
132.
Dilcia wants to know how drinking milk affects how tall a Monica grows. Which is the independent variable?
a)
Monica's growth
b)
drinking milk
133.
What would the INDEPENDENT variable be in an experiment testing which types of paper airplane goes furthest?
a)
the paper used
b)
the type of paper airplane
c)
the distance of each plane's flight
d)
how hard the plane is thrown
134.
Marcos wants to know: Does the type of gasoline put in a car effect how fast the car can drive? What is the independent variable?
a)
Type of gasoline
b)
which car the gas is put into
c)
how fast the car can drive
d)
how much gas is put into the car
135.
Angelina 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
d)
Who set up the experiment (Ms. S, etc)
136.

True of False


The dependent variable is responsive to the independent variable.

a)

True

b)

False

137.

The one factor that a scientist changes during an experiment. (It affects the results of the experiment).

a)

Controlled Variable

b)

Dependent Variable

c)

Independent Variable

138.

The variable that is measured. It is the result of the experiment.

a)

Controlled Variable

b)

Dependent Variable

c)

Independent Variable

139.

The factors that stay the same throughout the experiment.

a)

Constant

b)

Dependent Variable

c)

Independent Variable

140.
Molly investigated if the age of students caused them to be better drivers. What is the independent variable?
a)
Type of car
b)
Skill of driving
c)
Age of student
141.
Molly investigated if the age of students caused them to be better drivers. What is the dependent variable?
a)
Type of car
b)
Skill of driving
c)
Age of student
142.

The one factor that a scientist changes during an experiment.

a)

Controlled Variable

b)

Dependent Variable

c)

Independent Variable

143.

The factors that stay the same or are constant throughout the experiment.

a)

Controlled Variable

b)

Dependent Variable

c)

Independent Variable

144.

Why is it important to have only one independent variable and to control the other variables when performing science experiments?

a)

So you can tell which factor is causing the change in the experiment.

b)

It does not matter, you can have as many independent variables as you want.

145.
Changes in the _________ variable causes changes in the _________ variable.
a)
independent; dependent
b)
dependent; independent
146.
Tiffany was investing how fast it took Hayden to react to different sounds. Identify the independent variable.
a)
How fast Hayden reacted
b)
different sounds
c)
types of music
d)
Hayden
147.

Is the underlined phrase the independent variable or the dependent variable?


Does the flavor of ice cream effect how fast the ice cream melts?

a)

Independent Variable

b)

Dependent Variable

148.

Is the underlined phrase the independent variable or the dependent variable?


How does watching TV during studying affect a student’s test grades?

a)

Independent Variable

b)

Dependent Variable

149.

Is the underlined phrase the independent variable or the dependent variable?


Which brand of bubblegum allows for you to blow the largest bubble?

a)

Independent Variable

b)

Dependent Variable

150.

Is the underlined phrase the independent variable or the dependent variable?


Does deflating a ball affect a its ability to bounce?

a)

Independent Variable

b)

Dependent Variable

151.

Is the underlined phrase the independent variable or the dependent variable?


Will a person’s teeth will be whitened quicker if they use baking soda with their toothpaste?

a)

Independent Variable

b)

Dependent Variable

152.

Is the underlined phrase the independent variable or the dependent variable?


Does the type of shoe worn during a 30 meter dash affect the speed of the runner?

a)

Independent Variable

b)

Dependent Variable

153.

Is the underlined phrase the independent variable or the dependent variable?


Will a student’s performance in school will be affected if they do not eat breakfast?

a)

Independent Variable

b)

Dependent Variable

154.

You want to test which size of soccer ball is easiest to juggle with your feet. You test a size 3, size 4 and a size 5 ball. You count the seconds the ball stays in the air for each of the trials.


What is the independent variable?

a)

the size of the soccer ball

b)

The seconds the ball stays in the air

155.

You want to test which size of soccer ball is easiest to juggle with your feet. You test a size 3, size 4 and a size 5 ball. You count the seconds the ball stays in the air for each of the trials.


What is the dependent variable?

a)

the size of the soccer ball

b)

the seconds the ball stays in the air

156.

Does the size of a fish tank affect how large a fish will grow?


What is the dependent variable?

a)

how large the fish will grow

b)

the size of the fish tank

157.

Does the size of a fish tank affect how large a fish will grow?


What is the independent variable?

a)

how large the fish will grow

b)

the size of the fish tank

158.

Is the underlined phrase the independent variable or the dependent variable?


Does the lack of sleep make you gain weight?

a)

independent variable

b)

dependent variable

159.

The variable that you observe and measure is the ______________.

a)

independent variable

b)

dependent variable

160.

The one thing that you can change or manipulate in an experiment is called the ______________.

a)

independent variable

b)

dependent variable

161.

Two groups of students were tested to compare their speed working math problems. Each group was given the same problems. One group used calculators and the other group computed without calculators.


What is the independent variable?

a)

speed of students working math problems

b)

the use of calculators

162.

Marcel and his twin sister Marley both have the same science exam. Javier sleeps for 9 hours the night before the exam and his sister sleeps for 6 hours. After they take the test, they both compare their test grades. What is the independent variable?

a)

The number of hours of sleep they had

b)

The type of test

c)

The test grades

163.

One math class studies for an upcoming test while another math class does not study for the same test. The test scores of the two classes are compared afterwards. What is the independent variable?

a)

The test scores

b)

If a class studies or not

c)

The type of class

164.

Caleb wants to know: Does the type of gasoline put in a car effect how fast the car can drive?


What is the independent variable?

a)

Type of gasoline

b)

which car the gas is put into

c)

how fast the car can drive

d)

how much gas is put into the car

165.

Does the flavor of ice cream effect how fast the ice cream melts? The flavor of ice cream is the....

a)

independent variable

b)

dependent variable

166.

What effect does decreasing the temperature of a room have on a lifespan of a battery? The temperature of the room is the...

a)

independent variable

b)

dependent variable