Variables

Rebecca wants to see if her kitten prefers new chicken flavored treats over her usual beef flavored treats. She puts 10 chicken treats in one bowl and 10 beef flavored treats in another bowl. She sees which treats her kitten eats first and repeats this experiment for 3 days.

What is the Dependent Variable?

• Flavor of Treats

• Beef Flavored Treats

• Which treats the kittens eat first.

• Which bowl the kittens eat from.

Tags

NGSS.MS-ETS1-2

Rebecca wants to see if her kitten prefers new chicken flavored treats over her usual beef flavored treats. She puts 10 chicken treats in one bowl and 10 beef flavored treats in another bowl. She sees which treats her kitten eats first and repeats this experiment for 3 days.

What is the Independent Variable?

• Flavor of Treats

• Beef Flavored Treats

• Which treats the kittens eat first.

• Which bowl the kittens eat from.

Rebecca wants to see if her kitten prefers new chicken flavored treats over her usual beef flavored treats. She puts 10 chicken treats in one bowl and 10 beef flavored treats in another bowl. She sees which treats her kitten eats first and repeats this experiment for 3 days.

What is the Control?

• Flavor of Treats

• Beef Flavored Treats

• Which treats the kittens eat first.

• Which bowl the kittens eat from.

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.

• 3 calls made without aluminum foil.

• Independant Variable

• Number of dropped calls

• Dependent Variable

• Wrapping the phones in foil

• Control

Tags

NGSS.MS-PS4-2

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 Control?

• 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 Dependent 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

Ruthie has a pet goldfish. After several months the goldfish quits growing. Ruthie’s Mom told her the goldfish might have stopped growing because the tank is too small. Ruthie measures the size of her goldfish in its current tank, and then puts the goldfish in a larger tank. After 2 months the goldfish is now 1cm longer.

What is the Independent Variable?

• Length of the Goldfish

• Color of the Goldfish

• Size of the fish tank

• 2 months

Tags

NGSS.MS-LS1-5

NGSS.MS-LS2-1

Ruthie has a pet goldfish. After several months the goldfish quits growing. Ruthie’s Mom told her the goldfish might have stopped growing because the tank is too small. Ruthie measures the size of her goldfish in its current tank, and then puts the goldfish in a larger tank. After 2 months the goldfish is now 1cm longer.

What is the Dependent Variable?

• Length of the Goldfish

• Color of the Goldfish

• Size of the fish tank

• 2 months

Tags

NGSS.MS-LS1-5

NGSS.MS-LS2-4

Nicholas has been biting his nails since he was a kid. He wants to break the habit so he puts bitter tasting nail polish on his left hand and leaves his right hand without polish. After 3 days he notices his nails on his left hand have grown but he continued to bite his right hand nails.

What is the Control?

• There is no control

• Length of fingernails

• Bitter tasting nail polish on left hand

• Right hand with no polish