Free Printable Independent and Dependent Variables and Equations

1.

The one factor that a scientist changes during an experiment.

a)

Controlled Variable

b)

Dependent Variable

c)

Independent Variable

2.

The variable that is measured.

a)

Controlled Variable

b)

Dependent Variable

c)

Independent Variable

3.

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.

4.

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.

5.

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

a)

independent; dependent

b)

dependent; independent

6.

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

7.

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

8.

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

9.

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

10.

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

11.

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.

12.

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

13.

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

14.

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)

15.

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

a)

independent

b)

dependent

16.

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

a)

independent

b)

dependent

17.

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

a)

independent

b)

dependent

18.

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

a)

independent

b)

dependent

19.

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

a)

independent

b)

dependent

20.

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

a)

independent

b)

dependent

21.

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

22.

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

23.

The measurable factor in an experiment is known as the:

a)

Control

b)

Independent Variable

c)

Constant

d)

Dependent Variable

24.

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)

25.

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

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

Independent and Dependent Variables and Equations

Total questions: 26

Worksheet time: 2hrs 10mins

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