Independent, Dependent, and Controlled Variables

The independent variable is the ONE thing you _____.

• change
• keep the same
• experiment with
• investigate

Tags

NGSS.MS-PS2-2

The variable that you measure is the -

• Independent Variable
• Dependent Variable
• Controlled Variable
• Repeated Trial

How many independent variables can be tested in a controlled experiment?

• one
• two
• three
• as many as possible

What is a prediction?

• A prediction is the right answer to an experiment.

• A prediction is the wrong answer to an experiment.

• A prediction is an educated guess.

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, same amount of sunlight, and the same amount of liquid. In this investigation, what is the independent variable?

• Type of plant
• Different liquids
• Plant growth
• Amount of sunlight

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

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

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, same amount of sunlight, and the same amount of liquid. In this investigation, the dependent variable is ...

• The type of plant
• The amount of sunlight
• Growth of the plant
• The type of liquid

Tags

NGSS.MS-LS1-5

NGSS.MS-LS2-1

A student is planning an experiment to find out how the height from which he drops a ball affects how high the ball bounces. What is the control variable?

• The ball used
• The height the ball bounces
• Height of the ball being dropped

How does watching TV during studying affect a student’s test grades? Which variable is highlighted in red?

• independent variable
• dependent variable
• controlled variable

What effect does decreasing the temperature of a room have on a lifespan of a battery? Which variable is highlighted in red?

• independent variable
• dependent variable
• controlled variable