Jeremy thinks putting tape around a car’s doors would make the car waterproof. He tries filling the car with water, then adds the tape and fills the car with water again to see how much leaks out. What is the dependent variable?

Dr. Smith wants to see if playing competitive video games increases a person’s blood pressure. What would be the dependent variable in his experiment?

Jeremy thinks putting tape around a car’s doors would make the car waterproof. He tries filling the car with water, then adds the tape and fills the car with water again to see how much leaks out. What is the independent variable?

Dr. Smith wants to see if playing competitive video games increases a person’s blood pressure. What would be the control group in his experiment?

Clarkson thinks that a small car would get better gas mileage than a bigger car. What would need to be a constant in the experiment?

John wants to find out which brand of dog food his dog would rather eat. What would be the dependent variable?

Rose wants to know which energy drink would keep her awake the longest. To test this, what would she need to use as a control for comparison?

Clarkson thinks that a small car would get better gas mileage than a bigger car. What would be the independent variable in his experiment?

Clara wants to know if getting more sleep before a test will improve her scores. What would be the dependent variable in this experiment?

John wants to find out which brand of dog food his dog would rather eat. What would be the independent variable?

James believes that a motorcycle can get him across town faster than a car would. He rides his motorcycle while his friend Richard drives his car so they can see who will get across town first. What is the dependent variable?

Martha wants to know if listening to music would help her focus more when studying. What would be her independent variable?