Variables Practice

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 at noon each day for 3 days.

What is the Dependent Variable?

• flavor of treats

• which treats the kitten eats first

• usual beef flavored traits

• time of feeding

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 at noon each day for 3 days.

What is the control?

• flavor of treats

• which treats the kitten eats first

• usual beef flavored traits

• time of feeding

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 at noon each day for 3 days.

What is the independent Variable?

• flavor of treats

• which treats the kitten eats first

• usual beef flavored traits

• time of feeding

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 at noon each day for 3 days.

What is a constant for the experiment?

• flavor of treats

• which treats the kitten eats first

• usual beef flavored traits

• time of feeding

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.

What is a constant for this experiment?

• wrapping the phone in aluminum foil

• calls made without aluminum foil

• number of dropped calls

• Where takes the phone calls

Tags

NGSS.MS-ETS1-3

NGSS.MS-PS4-2

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.

What is the independent variable?

• wrapping the phone in aluminum foil

• calls made without aluminum foil

• number of dropped calls

• Where takes the phone calls

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.

What is the dependent variable?

• wrapping the phone in aluminum foil

• calls made without aluminum foil

• number of dropped calls

• Where takes the phone calls

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.

What is a control for this experiment?

• wrapping the phone in aluminum foil

• calls made without aluminum foil

• number of dropped calls

• Where takes the phone calls

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?

• How much sleep Heidi gets

• the 2 weeks she ate chocolate

• the number of pimples

• how much chocolate Heidi eats

Tags

NGSS.MS-LS1-5

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?

• How much sleep Heidi gets

• the 2 weeks she ate chocolate

• the number of pimples

• how much chocolate Heidi eats

Tags

NGSS.MS-LS2-1