Experimental Variables

An experiment is performed on plants to see how different liquids affect plant growth. Each plant in the experiment is given a different liquid; water, apple juice, or milk. Each plant has the same amount of soil, sunlight, and listens to the same music. In this investigation, the independent variable is ...

• The type of plant
• The amount of sunlight
• The type of music
• The type of liquid

Tags

NGSS.MS-LS1-5

An experiment is performed on plants to see how different liquids affect plant growth. Each plant in the experiment is given a different liquid; water, apple juice, or milk. Each plant has the same amount of soil, sunlight, and listens to the same music. In this investigation, what are the constants?

• Type of plant, amount of music, and sunlight
• Water, apple juice, milk
• Plant growth

The variable that is being tested or changed

• independent variable
• dependent variable
• control variable

The variable that is being measured

• independent variable
• dependent variable
• control variable

the variable that is kept the same to make sure results are caused by the thing being tested

• independent variable
• dependent variable
• constant

• control group

the variable that is observed at the end of the experiment

• independent variable
• dependent variable
• control variable

What is the independent variable?

• what we are changing or testing
• what we are observing or measuring
• what we keep the same to make the experiment fair

What is the dependent variable?

• what we are changing or testing
• what we are observing or measuring
• what we are keeping the same to make the experiment fair

Mr. S set up an experiment to see how the mass of a ball affects the distance it rolls off a ramp. Identify the independent variable.

• Distance traveled by the ball
• Height of the ramp
• Mass of the ball

Tags

NGSS.MS-PS2-2

Mr. S set up an experiment to see how the mass of a ball affects the distance it rolls off a ramp. What is the dependent variable?

• Distance traveled by the ball
• Height of the ramp
• Mass of the ball