Science Variables Lesson

Justin wants to determine the effect of fertilizer on the growth of grass. What is the dependent variable?

• amount of fertilizer

• growth of grass

• type of plant

• time

What you measure or observe in an experiment.

• constant variable

• controlled variable

• dependent variable

• independent variable

Tags

NGSS.MS-PS1-2

The ONE thing you change in an experiment.

• constant variable

• controlled variable

• dependent variable

• independent variable

Tags

NGSS.MS-PS3-4

All the things that have to stay the same in an experiment (except for the one thing you change).

• independent variable

• controlled variable

• dependent variable

Julie wants to know the effect of studying 10 minutes extra each day on her Math. What is the independent variable?

• time

• studying 10 extra minutes

• her math grade

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

• type of dog

• number of puppies

• weight of dog

• age of dog

Zach wants to determine if the amount of time spent on social media has an effect of grades. What is the dependent variable?

• popularity

• computer skills

• time on social media

• grades

Plants grow best in colored light. What is the independent variable of this statement?

• Plant Growth
• Colored Light

Tags

NGSS.MS-LS1-5

Which brand of paper towel will absorb the most liquid? What is the independent variable?

• Brand of paper towel
• Amount of water absorbed

Tags

NGSS.MS-ETS1-3

Joe wants to determine the effect of pesticides on the size of apples in the orchard. What is the dependent variable?

• amount of bugs

• size of apples

• use of pesticides

• number of apples

Tags

NGSS.MS-LS1-5