Test: Independent/ Dependent Variable Practice
For
Description: Practice identifying IV/DV from scenarios.
Subject: Science
Subtopic: Nature of Science
Topic: Other (topic not present)
Grade: 8
Instructions: Answer all questions to get your test result.

Question 1 of 18
A farmer applies different fertilizer to his cotton crops, to see which will make his plants grow the highest. What is the IV?
 


Type of fertilizer


Growth of plants


Height of plants.


Different cotton crops
Question 2 of 18
A farmer applies different fertilizer to his cotton crops, to see which will make his plants grow the highest. What is the dependent variable?
 


Growth of plants


Different cotton crops


Height of plants


Type of fertilizer
Question 3 of 18
I use different types of weed killers on my lawn to see which one kills the most weeds. What is the DV?
 


Types of weed killers


Amount of weeds killed


Types of weeds


Most weeds
Question 4 of 18
I use different types of weed killers on my lawn to see which one kills the most weeds. What is the IV?
 


Type of weed killer


Amount of weeds killed


Most weeds


Types of weeds
Question 5 of 18
In a study about headaches, doctors gave patients Alieve, Tylenol, Advil, and Excedrin, to see which medication would relieve the headache pain the fastest. The doctors timed how long it took the medication to work. What is the IV?
 


Types of pain reliever


Amount of medication


Headaches


Amount of time until pain was relieved
Question 6 of 18
In a study about headaches, doctors gave patients Alieve, Tylenol, Advil, and Excedrin, to see which medication would relieve the headache pain the fastest. The doctors timed how long it took the medication to work. What is the DV?
 


Types of pain relievers


Headaches


Amount of medication


Amount of time until pain was relieved
Question 7 of 18
To test the safety of a car, crash tests will test different types of cars in collision situations. They want to determine in which car the crash test dummy receives the least amount of damage. What is the DV?
 


Amount of damage to the car


Amount of damage to the dummy


Amount of collisions


Number of dummies
Question 8 of 18
To test the safety of a car, crash tests will test different types of cars in collision situations. They want to determine in which car the crash test dummy receives the least amount of damage. What is the IV?
 


Type of dummy


Amount of damage


Type of car


Type of crash
Question 9 of 18
A scientist wanted to determine the color flower that bees are most attracted to. She placed different colors of the same type of flower near each other and counted the number of bees that visited each flower color. What is the IV?
 


Type of flower


Type of bees


Color of flower


Number of bees
Question 10 of 18
A scientist wanted to determine the color flower that bees are most attracted to. She placed different colors of the same type of flower near each other and counted the number of bees that visited each flower color. What is the DV?
 


Type of bees


Color of flower


Number of bees


Type of flower
Question 11 of 18
Scientists wanted to determine the levels of pollution that a fish could withstand. They placed fish in tanks with differing pollution levels and timed how long they could live under those conditions. What is the IV?
 


Amount of time survived


Type of fish


Type of pollution


Levels of pollution
Question 12 of 18
Scientists wanted to determine the levels of pollution that a fish could withstand. They placed fish in tanks with differing pollution levels and timed how long they could live under those conditions. What is the DV?
 


Amount of time before death


Level of pollution


Type of fish


Type of pollution
Question 13 of 18
The independent variable is the one you measure.
 


False


True
Question 14 of 18
The independent variable is the variable that you change.
 


True


False
Question 15 of 18
How many independent variables can you have in an experiment?
 


3


As many as you want!


1


2
Question 16 of 18
The dependent variable is the variable that you measure.
 


False


True
Question 17 of 18
The dependent variable is the variable that you change.
 


True


False
Question 18 of 18
How many dependent variable can you have in an experiment?
 


1


As many are you can measure.


3


2