Identifying Variables

Front

What is the DEPENDENT variable (effect) in this experiment?
"Does eating breakfast improve test score?"
Options: eating breakfast or not, the grade you got on the test, what time you get up in the morning, how tasty the breakfast is

Back

the grade you got on the test

Front

What is the INDEPENDENT variable (cause) in this experiment? "Which type of medium is best for plant growth?" Options: height of plant (cm), type of medium (soil vs. sand), amount of medium, types of plant

Back

type of medium (soil vs. sand)

Front

What is the DEPENDENT variable (effect) in this experiment? "Do tall people jump further than short people?"

Back

how far the person jumps

Front

What is the INDEPENDENT variable (cause) in this experiment?
"Which type of metal, copper or aluminum, conducts heat faster?"
Options: size of metal, types of metal, time it takes to heat up, shape of the metal

Back

types of metal

Front

What is the "controlled group" in the experiment where Bonnie tests the effect of Bio-fertilizer 'x' on plant growth?

Back

plant without the Bio-fertilizer 'x'

Front

Which variable is NOT a constant in this experiment? "Is Bounty paper towel more absorbent than sparkle paper towel?" Options: the size of paper towel, the amount of water for the paper towel to absorb, amount of water the paper towel absorbed, the shape of paper towel

Back

amount of water the paper towel absorbed

Front

What is the INDEPENDENT variable in Janet's experiment on coffee and productivity?

Back

Having coffee or not

Front

What type of variable is the water when a scientist uses three (of the same type of) plants, two different fertilizers, equal light, and equal water in an experiment?

Back

Control

Front

What type of variable is the fertilizer when experimenting with the growth of a plant?

Back

Independent

Front

Which variable is the same for each test subject in an experiment?

Back

Control