Identifying Independent/Dependent Variables

Dilcia wants to know how drinking milk affects how tall a Monica grows. Which is the independent variable?

• Monica's growth

• drinking milk

Tags

NGSS.MS-LS1-5

NGSS.MS-LS1-7

Ramone wants to know: does the distance a person kicks a soccer ball effect how well they will do on their math test.  What is the dependent variable?

• How far they kick the soccer ball

• who the person is

• how well they do on the math test

• Type of soccer ball.

What would the INDEPENDENT variable be in an experiment testing which types 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

The more light bulb you add to a room, the brighter it will be. What is the dependent variable?

• Amount of lightbulbs

• How bright the room is

Answer explanation

The brightness of the room is the effect (dep var) of adding light bulbs (ind var).

Which of the following is the label for the independent variable.

• Money Collected

• Raising Money

• Boxes Sold

• None of the above

Tags

NGSS.MS-PS3-1

What is the Dependent Variable?

• amount of fertilizer

• type of fertilizer

• grass growth

• type of grass

Tags

NGSS.MS-LS2-1

NGSS.MS-LS2-4

What is the independent variable in an experiment where Nakia investigates the effect of temperature on the solubility of sugar in water?

• The amount of sugar

• The temperature of the water

• The solubility of sugar

• The type of water used

Answer explanation

The temperature of the water because it is being changed to observe its effect on the solubility of sugar in water.

Tags

NGSS.MS-PS1-4

Marilu wants to know the effect of the amount of pesticides on the size of apples

What is the dependent variable?

• amount of pesticides

• size of apples

• amount of apples

• amount of pests

Tags

NGSS.MS-LS1-5

NGSS.MS-LS2-1

NGSS.MS-LS2-4

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.

• Wrapping the phones in foil

• Dependent Variable

• 3 calls made without aluminum foil.

• Independant Variable

• Number of dropped calls

• Control