Scientific 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

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 controlled variables?

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

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 is the dependent variable?

• Type of plant
• Water, apple juice, milk
• Plant growth

A student is planning an experiment to find out how the height from which he drops a ball affects how high the ball bounces. The dependent variable is the _____.

• Diameter of the ball
• Force acting on the ball
• Height that the ball bounces
• Height from which the ball is dropped

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

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

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 controlled variable?

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

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

Scientific Question:  Does the type of sneaker you wear affect how fast you can run?
What is the independent variable?

• type of sneaker
• how fast you run
• person

Scientific Question:  Will a person fall asleep faster if they listen to music?
What is the control variable?

• music
• time to fall asleep
• person