WorksheetsParts of an Experiment Practice
Total questions: 55
Worksheet time: 55mins
This variable is the one thing that changed on purpose...
Dependent Variable
Control
Independent Variable
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.
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
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?
The time it takes for each object to hit the ground.
The size of each object.
The type of object you use.
The height you drop the object from
How many variables can be tested in a controlled (fair) experiment?
one
two
three
as many as possible
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)
Dropping the same way
Wing Length
Amount of time it takes the helicopter to hit the floor
Dropping from the same height
Johnny wants to know how different types of colored light affect plant growth? What is the IV?
types of plant growth
types of colored lights
plant growth on colored lights
plant growth
Why is it important to have only one independent variable and to control the other variables when performing science experiments?
So you can tell which factor is causing the change in the experiment.
It does not matter, you can have as many independent variables as you want.
The variable that is measured.
Controlled Variable
Dependent Variable
Independent Variable
True or False: a test may have more than one independent variable
true
false
What would the independent variable be in an experiment testing which type of paper airplane goes the furthest?
the type of paper used.
the distance each plane flies.
how hard the plane is thrown.
the type of paper airplane.
In any experiment, the independent variable ______________.
remains the same to not mess up the experiment
is purposely changed to test the hypothesis
is known by the scientist before doing the experiment
The variables in an experiment that stay the same are the -
Independent Variable
Dependent Variable
Constants
Control
You drop a tennis ball from three different heights: 1 meter, 2 meters, and 3 meters above the ground. You measure to see how high the ball bounces.
What is a constant?
The ball you use
The height you drop the ball from
The height the ball bounces
What type of dog food will help my very skinny dog gain the most weight?
What is a constant?
The type of dog food
The amount of food given to the dog
The amount of weight gained
Experiment: Sendel wants to see if taking the backroads to work is faster than taking the highway during rush hour.
In Sendel's driving experiment, what is the control group?
Highway
Backroads
Time she drives to work
Rush hour
In your experiment, the thing you measure is called the...
independent
dependent
control
ruler
In an experiment, the variable you change is called the...
independent
dependent
control
spam
The dependent variable is also called the...
manipulated
responding
control
super dependable
When writing a hypothesis, which variable is the IF?
independent
dependent
control
questions mark
When writing a hypothesis, which variable is the THEN?
independent
dependent
contol
question mark
Which variable is the data that you measure and record in the lab?
independent
dependent
control
math
True or False: a test may have more than one independent variable
true
false
Diego wants to know how drinking milk affects how tall Dora grows. Which is the independent variable?
Drinking milk.
Diego's growth.
Dora's growth.
Chocolate or plain milk.
Does the distance Manny kicks the soccer ball affect how well he tests in math? What is the dependent variable?
How far he kicks the soccer ball.
The type of soccer ball.
How well Manny does on his math test.
How tall Manny is.
What would the independent variable be in an experiment testing which type of paper airplane goes the furthest?
the type of paper used.
the distance each plane flies.
how hard the plane is thrown.
the type of paper airplane.
An experiment is performed on plants to see how different liquids affect plant growth. Each plant in the experiment is given a different liquid. Each plant has the same amount of sunlight, soil and listens to the same music. What is the independent variable?
the type of plant
the type of liquid
the type of music
the amount of liquid
An experiment is performed on plants to see how different liquids affect plant growth. Each plant in the experiment is given a different liquid. Each plant has the same amount of sunlight, soil and listens to the same music. What is the dependent variable?
the amount of liquid
the amount of sunlight
the growth of the plant
the volume of the music
Does the flavor of ice cream affect how fast the ice cream melts?
independent
dependent
Does the type of shoe worn during a 30 meter dash affect the speed of the runner?
independent
dependent
Which brand of bubblegum allows for your to blow the largest bubble?
independent
dependent
Does the temperature of the room affect student's test scores?
independent
dependent
When writing a hypothesis, the BECAUSE is...
based on your results
what you will measure
based on what you know or have learned
Which variable responds to what is being tested?
independent
dependent
control
Which variable is the one being tested?
independent
dependent
control
