Dependent and Independent Variables

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

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

The variable the is changed on purpose is..

• Constant

• Control

• Independent Variable

• Dependent Variable

Mark notices he has dropped calls on his cell phone when he walks into his bedroom. His friend told him to try and wrap aluminum foil around his phone to get better signal. Mark talks on the phone 3 times while walking into his bedroom and drops 2 of the 3 calls. He wraps his phone in aluminum foil and talks on the phone 3 more times while walking into his bedroom. With the aluminum foil on his phone he only drops 1 phone call.

• Number of dropped calls

• Control

• 3 calls made without aluminum foil.

• Independant Variable

• Wrapping the phones in foil

• Dependent Variable

Tags

NGSS.MS-ETS1-2

NGSS.MS-ETS1-3

Heidi is a chocolate lover and eats chocolate daily. She has a bad break-out and her friend told her eating chocolate causes pimples. Heidi continues to eat chocolate every day for 2 weeks and counts the number of pimples she has on her face. The following 2 weeks she doesn’t eat any chocolate and counts the number of pimples on her face. What is the Independent Variable?

• 2 weeks NOT eating chocolate

• 2 weeks eating chocolate

• Number of pimples

• How much sleep Heidi gets.

Heidi is a chocolate lover and eats chocolate daily. She has a bad break-out and her friend told her eating chocolate causes pimples. Heidi continues to eat chocolate every day for 2 weeks and counts the number of pimples she has on her face. The following 2 weeks she doesn’t eat any chocolate and counts the number of pimples on her face. What is the Independent Variable?

• 2 weeks NOT eating chocolate

• 2 weeks eating chocolate

• Number of pimples

• How much sleep Heidi gets.

Tags

NGSS.MS-LS1-5

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

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