Free Printable Dependent and Independent Variable

1.

The independent variable is the ONE thing you _____ to test your hypothesis.

a)

change

b)

keep the same

c)

experiment with

d)

investigate

2.

The variable that is measured throughout the experiment is the ________________
Hint: It may change as a result of your testing.

a)

Controlled Variable

b)

Responsive Variable

c)

Dependent Variable

d)

Independent Variable

3.

What would the INDEPENDENT variable be in an experiment testing which paper airplane design goes furthest?

a)

the paper used

b)

the paper airplane design

c)

the distance of each plane's flight

d)

how hard the plane is thrown

4.

Catherine is testing which soil will help grass grow the tallest. The height of the grown grass is the __ variable.

a)

constant (stays the same)

b)

independent (it's what you change)

c)

dependent (it's what you measure)

5.

When experimenting with plants to see if they grow better with or without fertilizer, a scientist uses six bean plants and one type of fertilizer. What type of variable is the fertilizer?

a)

Dependent

b)

Independent

c)

Control

d)

Compound

6.

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. 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

7.

Mrs. Ahlers set up an experiment to see how the mass of a ball affects the distance it rolls off a ramp. What is the dependent variable?

a)

Distance traveled by the ball

b)

Height of the ramp

c)

Mass of the ball

d)

Where the experiment took place.

8.

Jonathan set up the same 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 (Jonathan etc)

9.

Daniel was investigating how fast it took mice to react to different sounds. Identify the independent variable.

a)

How fast mice reacted

b)

different sounds

c)

types of music

d)

Daniel

10.

Students took a test after they had studied either in silence or with the television turned on. What is the dependent variable?

a)

silence

b)

television turned on

c)

score on test

d)

subject

11.

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

12.

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

a)

Controlled Variable

b)

Dependent Variable

c)

Independent Variable

13.

The factors that stay the same throughout the experiment.

a)

Constant

b)

Dependent Variable

c)

Independent Variable

14.

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

15.

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

16.

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

17.

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

18.

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

19.

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

20.

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

21.

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

22.

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

23.

The one factor that a scientist changes during an experiment.

a)

Controlled Variable

b)

Dependent Variable

c)

Independent Variable

24.

The variable that is measured.

a)

Controlled Variable

b)

Dependent Variable

c)

Independent Variable

25.

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

a)

Controlled Variable

b)

Dependent Variable

c)

Independent Variable

26.

In a controlled experiment, how many independent variables can be tested at a time?

a)

one

b)

none

c)

two or more

d)

how ever many makes sense.

27.

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.

28.

Changes in the _________ variable causes changes in the _________ variable.

a)

independent; dependent

b)

dependent; independent

29.

Changes in the _________ variable causes changes in the _________ variable.

a)

independent; dependent

b)

dependent; independent

30.

An experiment is being done to determine how light affects the growth of small zinnia plants. One plant is placed in full sunlight, the second in a shaded area, the third in an unlit closet. What is the independent variable in the experiment?

a)

the amount of light

b)

the type of plants

c)

the type of soil

d)

the length of the experiment

31.

An experiment is being done to determine how light affects the growth of small zinnia plants. One plant is placed in full sunlight, the second in a shaded area, the third in an unlit closet. The hypothesis of this experiment could be:

a)

Plants grow differently under different conditions.

b)

Zinnia plants in direct sunlight grow taller than zinnia plants in little or no sunlight.

c)

Many things, including sunlight, affect the growth of a plant.

32.

True or False - Experiments should have many independent variables.

a)

TRUE

b)

FALSE

33.

True or False - In order to avoid confusing or conflicting results, an experiment should not be repeated.

a)

TRUE

b)

FALSE

34.

An experiment is being done to determine how light affects the growth of small zinnia plants. One plant is placed in full sunlight, the second in a shaded area, the third in an unlit closet. What is the independent variable in the zinnia experiment?

a)

The plant growth

b)

The amount of sunlight

c)

The length of time needed to conduct the experiment

d)

The amount of water given daily

35.

What is it called when a scientist repeats an experiment several times in the exact same way?

a)

Hypothesis testing

b)

Repeated trials

c)

Sloppy work

36.

What observations might you make about a nearby cat?

a)

The cat is black and white.

b)

The cat is hungry.

c)

The cat is lost.

37.

Ramone wants to know: 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.

38.

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

39.

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

40.

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

41.

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

42.

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

43.

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)

44.

Kreedence wants to know if birds prefer to eat in one place over another. She makes three feeders out of 2-liter bottles and paints all of them red. She fills each of the feeders with the same amount of mixed birdseed, and plans to keep the feeders out for 10 days before measuring how much seed is eaten from each feeder. She puts each of the feeders in her back yard: one feeder in a large dead tree, another feeder she sits on the dog house, and the last she sits in a small bushy tree.
What is the dependent variable?

a)

Length of the birdfeeders

b)

Amount of time feeders are outside

c)

Amount of seed eaten

d)

Location the feeders are put in.

45.

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

a)

independent

b)

dependent

46.

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

a)

independent

b)

dependent

47.

How does increasing the slope of a ramp affect how far a marble travels?

a)

independent

b)

dependent

48.

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

a)

independent

b)

dependent

49.

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

a)

independent

b)

dependent

50.

Does changing the scent of a brand of dog food affect how much the dog eats?

a)

independent

b)

dependent

51.

What is the effect on increasing the amount of sunlight given to tulips?

a)

independent

b)

dependent

52.

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

a)

independent

b)

dependent

53.

How does adding cardio to one’s daily schedule affect their heart rate?

a)

independent

b)

dependent

54.

A person’s teeth will be whitened quicker if they use baking soda with their toothpaste.

a)

independent

b)

dependent

55.

An apple’s freshness will last longer if they are refrigerated.

a)

independent

b)

dependent

56.

Does deflating a ball affect a its ability to bounce?

a)

independent

b)

dependent

57.

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

58.

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

59.

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

60.

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

61.

Ms. S set up an experiment to see how the mass of a ball affects the distance it rolls off a ramp. What is the dependent variable?

a)

Distance traveled by the ball

b)

Height of the ramp

c)

Mass of the ball

d)

Where the experiment took place.

62.

Ms. 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

d)

Who set up the experiment (Ms. S, etc)

63.

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

64.

Mr. S normally uses praise as a reward to train his dog. He wants to know the best way to train his dog, so he sets up an experiment to find out if there is a better way to get his dog to respond to commands. What is his dependent variable?

a)

Type of reward

b)

Praise

c)

Type of dog

d)

Amount of time the dog follows commands

65.

The independent variable is the ONE thing you _____.

a)

change

b)

keep the same

c)

experiment with

d)

investigate

66.

In a controlled experiment, the variable that is changed to test the hypothesis is called the –

a)

Controlled Variable

b)

Responsive Variable

c)

Dependent Variable

d)

Independent Variable

67.

In a controlled experiment, the variable that is changed to test the hypothesis is called the –

a)

Controlled Variable

b)

Responsive Variable

c)

Dependent Variable

d)

Independent Variable

68.

The measurable factor in an experiment is known as the:

a)

Control

b)

Independent Variable

c)

Constant

d)

Dependent Variable

69.

Alexandra is testing the quality of her Nikon camera against the camera on her iPhone. The different cameras is the __ variable.

a)

constant (same)

b)

dependent (measured)

c)

independent (changes)

70.

Khaleel is testing how the use of stress balls during testing affects a student's test score. The students' average test scores who used the stress balls is the __ variable.

a)

dependent (measured)

b)

constant (same)

c)

independent (changes)

71.

Walker is testing which fertilizer will grow the tallest grass. The height of the grown grass is the __ variable.

a)

constant (same)

b)

independent (changes)

c)

dependent (measured)

72.

A comprehension test was given to students after they had studied textbook material either in silence or with the television turned on. What is the dependent variable?

a)

silence

b)

television turned on

c)

score on test

d)

textbook material

73.

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

74.

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

75.

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

76.

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

77.

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

78.

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

79.

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

80.

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

81.

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

82.

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

83.

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

84.

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

85.

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

86.

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

87.

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

88.

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

89.

Which observation is quantitative?

a)

It is 5 cm long

b)

It is smooth

c)

It looks red

d)

It is dry

90.

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

91.

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

92.

Dolphins have smooth skin.

a)

quantitative observation

b)

qualitative observation

93.

Dolphins eat the equivalent of 4% of their body mass each day.

a)

quantitative observation

b)

qualitative observation

94.

If a laboratory fire erupts, immediately

a)

notify your teacher

b)

run for the fire extinguisher

c)

throw water on the fire

d)

open a window

95.

If you do not understand a direction or part of a lab procedure, you should

a)

figure it out as you do the lab

b)

try several methods until something works

c)

skip it and go to the next part

d)

ask your teacher

Dependent and Independent Variable

Total questions: 95

Worksheet time: 2hrs 42mins

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