Independent and Dependent Variables in Science

In a science experiment, what is an independent variable?

• The thing that you change

• The thing that you measure

• The thing that you keep the same

Tags

NGSS.MS-PS3-4

In a science experiment, what is the dependent variable?

• The thing that you change

• The thing that you measure

• The thing that you keep the same

Tags

NGSS.MS-PS1-2

In the scientific question "Does the amount of fertiliser affect the height that a bean plant grows?" What is the independent variable?

• Amount of fertiliser

• Height of the bean plant

• Amount of soil used

• How often the plant is watered

Tags

NGSS.MS-LS1-5

NGSS.MS-LS2-1

In the scientific question "Does the amount of fertiliser affect the height that a bean plant grows?" What is the dependent variable?

• Amount of fertiliser

• Height of the bean plant

• Amount of soil used

• How often the plant is watered

Tags

NGSS.MS-LS1-5

NGSS.MS-LS2-1

In an experiment, the factor that is changed is called the...

• independent variable

• dependent variable

• control

• spam

Tags

NGSS.MS-PS2-2

In any experiment, the independent variable ______________.

• remains the same to not mess up the experiment

• is purposely changed to test the hypothesis

• is known by the scientist before doing the experiment

Tags

NGSS.MS-PS2-2

In an experiment, an independent variable is...

• Something that remains the same.

• Something that is changed.

• A constant

• The hypothesis

Why is it important to only change the independent variable in an experiment?

• It's not important.

• To keep the experiment fair.

• To prove your hypothesis correct

• To make sure you have enough detail for your conclusion.

Tags

NGSS.MS-PS2-2

In the scientific question "If salt is added to water, will the water boil at a different temperature?" What is the independent variable?

• Amount of salt added

• Whether salt is added or not

• Temperature the water boils at

• The amount of water mixed with the salt

Tags

NGSS.MS-PS3-4

In the scientific question "If salt is added to water, will the water boil at a different temperature?"

What is the dependent variable?

• Amount of salt added

• Whether salt is added or not

• Temperature the water boils at

• The amount of water mixed with the salt