Independent Variable

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.

In the statement, Citronella leaf extract repels dengue-carrying mosquitoes, what is the independent variable?

• extract of citronella

• duration of the study

• repelling action of the extract

• dengue-carrying mosquitoes

Tags

NGSS.MS-LS2-4

What is the INDEPENDENT variable? You are testing which type of paper airplane goes furthest?

• the paper used

• the type of paper airplane

• the distance of each plane's flight

• how hard the plane is thrown

Tags

NGSS.MS-PS2-2

Marcos wants to know: Does the type of gasoline put in a car effect how fast the car can drive? What is the independent variable?

• Type of gasoline

• which car the gas is put into

• how fast the car can drive

• how much gas is put into the car

Tags

NGSS.MS-PS3-1

Does the flavor of ice cream effect how fast the ice cream melts? The flavor of ice cream is the....

• independent variable

• dependent variable

How does increasing the slope of a ramp affect how far a marble travels? Increasing the slope is the...

• independent variable

• dependent variable

Tags

NGSS.MS-PS2-2

NGSS.MS-PS3-4

NGSS.MS-PS3-5

How does the amount of sunlight affect how many tulip flowers a plant grows? The sunlight is the...

• independent variable

• dependent variable

Tags

NGSS.MS-LS1-5

NGSS.MS-LS2-1

In an experiment to test the effect of temperature on the solubility of salt in water, what is the independent variable?

• Temperature of the water

• Amount of salt

• Volume of water

• Time taken to dissolve

Tags

NGSS.MS-PS1-4

A scientist is testing the effect of different fertilizers on plant growth. What is the independent variable?

• Type of fertilizer used

• Height of the plants

• Amount of water given

• Time of growth

In a study to determine how the color of light affects plant growth, what is the independent variable?

• Color of light

• Growth rate of plants

• Type of plant

• Amount of water

Tags

NGSS.MS-LS1-5