Variables Nature of Science

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 controlled variables?

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

Tags

NGSS.MS-LS1-5

Find the DV:  You experiment to see if a bouncy ball or a tennis ball bounces higher.

• Type of ball
• Same drop height
• Height of bounce
• Same surface

Find the IV:  You experiment to see if a bouncy ball or a tennis ball bounces higher.

• Type of ball
• Same drop height
• Height of Bounce
• Same surface

Tags

NGSS.MS-PS2-1

NGSS.MS-PS2-2

Find a CV:  You experiment to see if a bouncy ball or a tennis ball bounces higher.

• Type of ball
• Same drop height
• Height of Bounce

Find a CV:  You experiment to see how the noise level in a room affects your ability to memorize random numbers and letters.

• Ability to memorize
• Noise level in room
• Age of person

Find the IV:  You experiment to find out if you can blow bigger bubbles when it is hot outside or when it is cold outside.

• bubble blowing technique
• Type of bubble juice
• Size of bubbles
• Temperature

Tags

NGSS.MS-PS3-4

Find the IV:  You experiment to discover if your pulse rate is affected by caffeine

• Pulse rate
• Temperature of room
• Amount of caffeine
• Amount of exercise

Find the IV:  You experiment to see if the type of liquid changes how fast it can drain out of the tornado tube

• Amount of liquid
• Type of liquid
• Technique of swirl
• Speed to drain

Any factor that can change in an experiment

• variable
• constant
• independent
• dependent

Tags

NGSS.MS-PS3-4