Independent vs Dependent Variables in Science

The variable that is being tested, counted, or measured and is what you look at the end of an investigation is called ...

• Control

• Constant

• Independent Variable

• Dependent Variable

Tags

NGSS.MS-PS2-2

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

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

Maddies wants to determine if the weight of the dog will determine the number of puppies in a litter. What is the dependent variable?

• type 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 independent variable?

• distance

• amount of exercise

Tags

NGSS.MS-PS2-2

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

This variable is the one thing that changed on purpose...

• Dependent Variable

• Control

• Independent Variable

Tags

NGSS.MS-PS2-2

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.

Tags

NGSS.MS-LS1-5

NGSS.MS-LS2-1