Scientific Variable Practice

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 is the dependent variable?

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

Tags

NGSS.MS-LS1-5

The variable that is being tested or changed

• independent variable
• dependent variable
• control variable

Any factor that can change in an experiment

• variable
• constant
• independent
• dependent

Tags

NGSS.MS-PS3-4

The variable that is being measured

• independent variable
• dependent variable
• control variable

Scientific Question: Does playing video games improve reaction time?

What is the independent variable?

• playing or not playing video games

• reaction time

• type of video game

Scientific Question: Does playing video games improve reaction time?

What is the dependent variable?

• playing or not playing video games

• reaction time

• type of video game

When experimenting with the growth of a plant, a scientist uses three (of the same type of) plants, two different fertilizers, equal light, and equal water. What type of variable is the fertilizer?

• Dependent
• Independent
• Control
• Compound

Tags

NGSS.MS-LS2-4

Marcos wants to know: Does the type of gasoline put in a car effect how fast the car can drive? What is the independent variable?

• Type of gasoline
• which car the gas is put into
• how fast the car can drive
• how much gas is put into the car

Tags

NGSS.MS-PS3-1

NGSS.MS-PS3-5

What kind of observation is this: The tree has several branches.

• Qualitative

• Quantitative