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WorksheetsIndependent and Dependent Variables
Total questions: 97
Worksheet time: 2hrs 18mins
The things that are kept the same to ensure the results are due to the experiment is called..
Constant
Dependent Variable
Independent Variable
Angel wants to know if the type of soap has an effect on how clean her clothes get. What is the independent variable?
type of soap
how long the laundry takes
Angel wants to know if the type of soap has an effect on how clean her clothes get. What is the dependent variable?
type of soap
how clean the clothes are
Zach wants to determine if the amount of time spent on social media has an effect of grades. What is the independent variable?
time on social media
computer skills
Zach wants to determine if the amount of time spent on social media has an effect of grades. What is the dependent variable?
popularity
grades
What is the DEPENDENT variable (effect) in this experiment?
"Does eating breakfast improve test scores?"
eating breakfast or not
the grade you got on the test
what time you get up in the morning
how tasty the breakfast is
You are testing how the amount you water a plant affects its growth. What would be the INDEPENDENT VARIABLE in this experiment.
They type of pot you put the plants in.
The amount you water each plant.
The amount of sunlight the plants get.
The amount the plant grows.
Mr. Pransky wants to see how different surfaces affect how high a tennis ball can bounce. What is the independent variable?
the different surfaces
using the same ball
how high they bounce
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?
Whether salt is added or not
Boiling Point
Amount of water
The information you collect in an experiment in order to answer a question is called
Charts
Graphs
Data
Hypotheses
If students spend more time using TikTok, then they will read fewer books. Identify the independent variable.
amount of time on TikTok
number of books read
There isn't one.
Taking a nap in the afternoon makes people more focused for the rest of the day. Identify the dependent variable.
Taking a nap
Being focused
There isn't one.
Spending time with a family dog decreases the amount of stress someone is feeling. What is the dependent variable?
time with the family dog
amount of stress
There isn't one.
Eating breakfast in the morning increases the ability to learn in school. Identify the independent variable.
eating breakfast
ability to learn in school
There isn't one.
Scenario: Which brand of laundry detergent will clean stains the best? The independent variable is:
Type of Detergent
Size of Stain
Type of washing maching
Temperature of Water
Scenario: Does the height a plant grows depend on the color of light? What is the dependent variable?
Type of plant
Height of the plant
Color of lights
Location of the plant
Scenario: Will increasing time effect the number of kernals popped in a microwave? What is the independent variable?
Brand of popcorn
Number of kernals
Time to pop the popcorn
Type of microwave
Scenario: Does seed depth affect plant growth? What is the independent variable?
Height of plant
Depth of seeds
Type of seeds
Amount of light
Scenario: Do mealworms prefer light or dark environments? What is ONE of the control variables?
Number of mealworms in the light
Number of mealworms in the dark
Distance the mealworms travel
Type of mealworm
Scenario: Does the temperature of water affect the time it takes to freeze? What is the independent variable?
Temperature of water
Time to freeze
Type of container
Amount of water
Does the type of music played during study sessions affect test scores? Identify the dependent variable.
Type of music
Test scores
Duration of study sessions
Number of study sessions
Scenario: Will the color of a room affect how relaxed people feel? What is the dependent variable?
Color of the room
Level of relaxation
Size of the room
Number of people in the room
A scientist conducted an investigation to determine the relationship between algae growth and available light at increasing ocean depths. The scientist lowered a light meter into the ocean and recorded the amount of light at different depths. The scientist also collected a water sample at each depth to count the number of algae present. The table below shows the results.
Based on the information in the table, which of the following statements best describes the relationship between light and the density of the algae population?
As the light level decreases, the density ofthe algae population decreases.
As the light level decreases, the density of the algae population increases.
As the density of the algae population increases, it reduces the light level.
Light level has no effect on the density ofthe algae population.
dependent variable
independent variable
controlled variable
inferences
Natalie is using a three-dimensional representation to study the parts of the human heart. Isaiah is working in a laboratory to test the hypothesis that plants grow taller in green light than in white light. Which of the following best
compares their activities?
Natalie is conducting a scientific investigation, and Isaiah is not.
Natalie is not conducting a scientific investigation, and Isaiah is.
Natalie is conducting an experiment, and Isaiah is conducting a field study.
Natalie is investigating a scientific model, and Isaiah is conducting
an experiment.
experimental group
control group
data
variables
independent variable
dependent variable
control group
data group
Destiny conducted an experiment to test which of four types of batteries lasts longest in a flashlight. She used four identical flashlights and placed a different type of new battery in each flashlight. She turned the flashlights on at the same time, and she recorded the time when each flashlight stopped giving off light. Destiny's data are shown.
What is the independent variable in this experiment?
the type of battery used
the type of flashlight used
the total amount of time each battery lasts
the starting time when each flashlight is turned on
a factor that is not changed in an experiment; all the parts that stay the same to keep the experiment fair and consistent
variable
control group
constant
evidence
Keesha did an experiment to study the rate of photosynthesis in the water plant Elodea. She placed a piece of Elodea in a beaker of water and set the beaker 10 centimeters (cm) from a light source. Keesha counted the bubbles released from the plant every minute for five minutes (min). She repeated the process two more times. First, she moved the light to 20 cm from the beaker, and then she moved the light to 30 cm from the beaker. Keesha’s setup and data are shown below.
What is the outcome variable (dependent variable) in this experiment?
the number of bubbles produced
the type of plant placed in the beaker
the amount of time the bubbles were counted
the distance of the light source from the plant
Which type of sugar dissolves the fastest?
Which is the independent variable?
The temperature of the water
The amount of water
The type of sugar
The type of cup you use
How much food does a goldfish need to grow?
Which is the dependent variable?
The type of fish
How much food you give the fish
How fast they grow
The amount of water in the tank
A scientist measured the weight of a steel ball on an ocean beach and again on a mountaintop and compared the measurements. The scientist found that the ball weighed slightly more on the beach than on the top of the mountain. Based on this information, which of the following is the most logical hypothesis for the scientist to state?
As elevation decreases, the force of gravity decreases.
As elevation increases, the force of gravity decreases.
Elevation does not affect the force of gravity.
As elevation increases, weight increases.
Keesha did an experiment to study the rate of photosynthesis in the water plant Elodea. She placed a piece of Elodea in a beaker of water and set the beaker 10 centimeters (cm) from a light source. Keesha counted the bubbles released from the plant every minute for five minutes (min). She repeated the process two more times. First, she moved the light to 20 cm from the beaker, and then she moved the light to 30 cm from the beaker. Keesha’s setup and data are shown below.
What is the outcome variable (dependent variable) in this experiment?
the number of bubbles produced
the type of plant placed in the beaker
the amount of time the bubbles were counted
the distance of the light source from the plant
Christopher states the hypothesis that a mouse's body temperature decreases as the air temperature around the mouse decreases. He wants to design an experiment to test his hypothesis. What should the dependent variable be in
this experiment?
the air temperature
the mass of the mouse
the mouse's body temperature
the amount of time for the experiment
What is the INDEPENDENT variable? You are testing which type of paper airplane goes furthest?
the paper used
the type of paper airplane
the distance of each plane's flight
how hard the plane is thrown
Does the flavor of ice cream effect how fast the ice cream melts? The flavor of ice cream is the....
independent variable
dependent variable
Does the type of shoe worn during a 30 meter dash affect the speed of the runner? The speed of the runner is the...
independent variable
dependent variable
How does increasing the slope of a ramp affect how far a marble travels? Increasing the slope is the...
independent variable
dependent variable
What effect does decreasing the temperature of a room have on a lifespan of a battery? The temperature of the room is the...
independent variable
dependent variable
How does watching TV during studying affect a student’s test grades? Student's grades are the....
independent variable
dependent variable
Does changing the scent of a brand of dog food affect how much the dog eats? How much the dog eats is the...
independent variable
dependent variable
How does the amount of sunlight affect how many tulip flowers a plant grows? The sunlight is the...
independent variable
dependent variable
How does adding cardio to one’s daily schedule affect their heart rate? The heart rate is the...
independent variable
dependent variable
An apple’s freshness will last longer if they are refrigerated. If you did an experiment to test this, the freshness would be the...
independent variable
dependent variable
The variable that is measured.
Controlled Variable
Dependent Variable
Independent Variable
The one factor that a scientist changes during an experiment.
Controlled Variable
Dependent Variable
Independent Variable
A study was done to find if different tire treads affect the braking distance of a car.
The height of bean plants depends on the amount of water they receive.
What is the first step in the scientific method?
Data
Conclusion
No Horse Play
Observe a problem
What is an observation?
A scientific statement based on ideas
Using your senses to notice what is going on around you
To be unaware of your surroundings
The question that you want an answer to.
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?
amount of money raised
number of books
(Select all that apply) Which of these should be controls for a running experiment testing out different shoe types?
Shirt and Pants
Weather
Track used to run on
The person running
You may only change one variable at a time. This is a (a) test.
The information you collect while doing your experiment is called
conclusions
data
hypotheses
procedures
The variable that is being measured or observed is called the _______________.
independent variable
dependent variable
control variable
The process of getting information by using the senses is called a/an___
Conclusion
Observation
Inquiry
Scientific method
A hypothesis is simply a prediction that has not yet been ____.
Anything that can change in an experiment is called a ________.
measurement
variable
obeservation
hypothesis
How many independent variables should you have in an experiment?
two
as many as possible
four
one
To know what is causing the changes.
If I engage in class activities and discussions, then I will have a better science test score. What is the dependent variable?
Class activities
Engaging
Discussions
Science test score
Ben makes five paper airplanes with different wing shapes. He throws them the same way from a starting point for three trials each. He records the distance each airplane flies.
What is the independent variable?
Throwing the same way
Wing shape
The distance the airplane flies.
Throwing from the same starting point.
My brothers watned to see if a sled would go different speeds with different people on it. We alll rode in the sled separately. We meseaured how fast the sled went from the top of the hill to the fence at the bottom.
What are two CONSTANTS? (Select 2)
Distance the sled travels.
Using the same sled.
The same people in the sled
The speed of the sled.
What was the research question in the Oreo Cookie Investigation?
Are Double Stuf Oreos bigger than regular Oreos?
Do Double Stuf Oreos taste better than regular Oreos?
Do Double Stuf Oreos contain more sugar and calories than the regualr Oreos?
Do Double Stuf Oreos contain two times the cream filling as regular Oreos?
What was the dependent variable in the Oreo Cookie Investigation?
The type of Oreo cookie.
The mass of the cream filling in grams.
The flavor of the Oreo cookie.
The height of the cream filling in millimeters.
We should always use average data from the largest sample size because it makes the data more believable/trust-worthy.
True
False
The independent variable in the Oreo Cookie Investigation was...
The type of Oreo cookie used (Double Stuf or regular).
The mass of the cream filling in grams.
The height of the cream filling in millimeters.
The flavor of the cookie.
In the Oreo Cookie Investigation, it was important to use the same flavor of cookie as a constant.
True
False
Which unit of mass was used in the Oreo Cookie Investigation?
G
g
mg
kg
