Controlled, Independent & Dependent Variables

A procedure that tests a hypothesis by collecting information under controlled conditions.

• Controlled Variable

• Independent Variable

• Dependent Variable

• Scientific Experiment

Tags

NGSS.MS-PS2-2

NGSS.MS-PS1-2

A variable that is not changed, or remains constant in a scientific experiment.

• Controlled Variable

• Independent Variable

• Dependent Variable

• Scientific Experiment

Tags

NGSS.MS-PS2-2

A variable that is changed in a scientific experiment.

• Controlled Variable

• Independent Variable

• Dependent Variable

• Scientific Experiment

The measurable outcome in a scientific experiment.

• Controlled Variable

• Independent Variable

• Dependent Variable

• Scientific Experiment

Tags

NGSS.MS-PS3-5

You can have more than one independent variable in a controlled experiment.

• True
• False

Experiment: How does the flavor of ice cream affect the speed of melting?

The flavor of ice cream is the ___________ variable.

• independent

• dependent

Tags

NGSS.MS-PS3-5

NGSS.MS-PS3-4

Experiment: Does changing the wing shape to make it more narrow affect the distance a paper airplane will fly?

The wing shape is the ___________ variable.

• independent

• dependent

Tags

NGSS.MS-ETS1-3

Experiment: How does watching TV during studying affect a student’s test grades?

The students grades are the ___________ variable.

• independent
• dependent

Squidward found new reeds to tryout for his clarinet.  He used an APPLAUSOMETER to measure applause after playing  Under the Sea with each reed.  The results were put in the table.
What was the dependent variable?

• The Song
• The Reed
• The Applause

A scientific experiment should be repeated many times so that scientists can collect enough data to form a strong conclusion.

• TRUE

• FALSE

Tags

NGSS.MS-LS1-5