One chicken is injected with a growth hormone while another chicken is not injected. Both chickens are weighed after a year. What is the independent variable?

• the chickens

• growth hormone

• weight of the chickens

Tags

NGSS.MS-LS1-5

One chicken is injected with a growth hormone while another chicken is not injected. Both chickens are weighed after a year. What is the dependent variable?

• the chickens

• growth hormone

• weight of the chickens

Tags

NGSS.MS-LS1-5

A bug repellent is sprayed on one arm the other arm is not sprayed. The number of bug bites is recorded after 2 hours. What is the independent variable?

• bug repellent

• arms

• number of bug bites

A bug repellent is sprayed on one arm the other arm is not sprayed. The number of bug bites is recorded after 2 hours. What is the dependent variable?

• bug repellent

• arms

• number of bug bites

Javier sleeps 9 hours the night before his science exam. His twin sister has the same exam and sleeps 6 hours the night before the test. Afterward, they compare their scores. What is the independent variable?

• the science exam

• hours of sleep

• exam scores

Javier sleeps 9 hours the night before his science exam. His twin sister has the same exam and sleeps 6 hours the night before the test. Afterward, they compare their scores. What is the dependent variable?

• the science exam

• hours of sleep

• exam scores

Group A exercises for a month. Group B does not exercise. They measure the amount of weight they gained. What is the independent variable?

• Weight

• Month

• Exercise

Group A exercises for a month. Group B does not exercise. They measure the amount of weight they gained. What is the dependent variable?

• Weight

• Month

• Exercise

Tags

NGSS.MS-LS2-1

NGSS.MS-LS2-4

One chicken is injected with a growth hormone while another chicken is not injected. Both chickens are weighed after a year. What is a control variable?

• the chickens

• growth hormone

• weight of the chickens

Tags

NGSS.MS-LS1-5

Javier sleeps 9 hours the night before his science exam. His twin sister has the same exam and sleeps 6 hours the night before the test. Afterward, they compare their scores. What is a control variable?

• the science exam

• hours of sleep

• exam scores