WorksheetsExperimental design variables
Total questions: 20
Worksheet time: 30mins
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
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
Maddie wants to determine if the weight of the dog will determine the number of puppies in a litter. What is the independent variable?
weight of dog
number of puppies
Beth wants to know if increasing her exercise will decrease the time it takes her to run a mile. What is the dependent variable?
time to run a mile
amount of exercise
Julie wants to know the effect of studying 10 minutes extra each day on her Math. What is the dependent variable?
her math grade
studying 10 extra minutes
If I drink a lot of water then I will have to go to the bathroom.
What is the red part? (¿Qué es la parte roja?)
Independent variable
dependent variable
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
Sadie is testing how the age of a seed affects how fast plants grow. Look at the picture to see if you can figure out what makes her experiment unfair. Mark all that apply.
She used different types of seeds/plants.
The plants are in different pots.
She did not plant very many plants.
Seed age might not make a difference.
What are the constant variables?
what we are changing or testing
what we are observing or measuring
what we keep the same to make the experiment fair
What is the control variable?
