Independent and Dependent Variables Assignment

1. Jason states the following prediction: “As the air temperature increases, the air in a balloon will expand, increasing the circumference of the balloon.”

What is the test variable (independent variable) for an experiment designed to test Jason’s prediction?

Tags

NGSS.MS-PS1-4

1. Jason states the following prediction: “As the air temperature increases, the air in a balloon will expand, increasing the circumference of the balloon.”

What is the outcome variable (dependent variable) for an experiment designed to test Jason’s prediction?

1. A scientist wanted to test whether frogs jump different distances if they are kept at different temperatures. He kept one group of frogs at 40 degrees Fahrenheit, another at 55 degrees Fahrenheit, and a third group at 70 degrees. He found that frogs kept at higher temperatures can jump farther than frogs kept at lower temperatures. What is the test variable (independent variable) in this experiment?

1. A scientist wanted to test whether frogs jump different distances if they are kept at different temperatures. He kept one group of frogs at 40 degrees Fahrenheit, another at 55 degrees Fahrenheit, and a third group at 70 degrees. He found that frogs kept at higher temperatures can jump farther than frogs kept at lower temperatures. What is the outcome variable (dependent variable) in this experiment?

1. Kaylee reads an article that states that the frequency of chirping by crickets is related to the temperature of their environment. She wants to conduct an experiment to see if this is true. Kaylee states this hypothesis: Crickets chirp more frequently when the temperature of their environment increases. What is the test variable in Kaylee’s experiment?

1. Kaylee reads an article that states that the frequency of chirping by crickets is related to the temperature of their environment. She wants to conduct an experiment to see if this is true. Kaylee states this hypothesis: Crickets chirp more frequently when the temperature of their environment increases. What is the outcome variable (dependent variable) in Kaylee’s experiment?

• temperature

• time

• frequency of chirps

• number of crickets

1. A student reads that plants do not grow well under green lights. She wants to know how plants grow under lights of other colors, so she decides to test blue. She makes the hypothesis “if plants are grown under blue lights, then they will grow taller than plants grown under green lights”. What is the test variable (independent variable)

• light color

• plant height

• time

• leaf number

Tags

NGSS.MS-LS1-5

NGSS.MS-LS2-1

1. A student reads that plants do not grow well under green lights. She wants to know how plants grow under lights of other colors, so she decides to test blue. She makes the hypothesis “if plants are grown under blue lights, then they will grow taller than plants grown under green lights”. What is the outcome variable (dependent variable) in this prediction?

• light color

• plant height

• time

• leaf number

Tags

NGSS.MS-LS1-5

What is the independent variable on this graph?

What is the dependent variable in this graph?