Independent & Dependent Variables

Research Question: Does the type of gasoline put in a car effect how fast the car can drive. What is the independent variable?

• Type of gasoline
• which car the gas is put into
• how fast the car can drive
• how much gas is put into the car

Research question: does the distance a person kicks a soccer ball effect how well they will do on their math test.  What is the dependent variable?

• How far they kick the soccer ball
• who the person is
• how well they do on the math test
• Type of soccer ball.

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

The variable the is changed on purpose is..

• Constant
• Control
• Independent Variable
• Dependent Variable

The variable that is being tested, counted, or measured and is responding to the independent variable is known as 

• Control
• Constant
• Independent Variable
• Dependent Variable

Which brand of paper towel will absorb the most liquid? What is the independent variable?

• Brand of paper towel
• Amount of water absorbed

Which brand of paper towel will absorb the most liquid? What is the dependent variable?

• brand of paper towel
• amount of water absorbed

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

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

Beth wants to know if increasing her exercise will decrease the time it takes her to run a mile. What is the independent variable?

• distance

• amount of exercise