Show:
Definitions
Identify the
Independent Variable (I.V.)
Identify the
Dependent Variable (D.V.)
Identify the
Constants or Controlled Variables
Synonyms
100
The one and only variable that is purposely changed in an experiment. This is the cause not the effect.
Independent Variable
100
Jackson designed an experiment to test which brand of paper towel absorbs the most water.
I.V. = Brand of paper towel
100
Harry performed an investigation to find out how temperature affects crystal growth.
D.V. = Crystal Growth
100
Chris performed designed an experiment to find out if fig trees preferred sunlight or shaded areas to grow.
Same type of trees, Same soil, Same amount of water
100
The "testing variable" is also known as...
Independent Variable
200
A prediction about what will happen in an investigation that uses the "I predict if..then.." format.
Hypothesis
200
Jamie performed an investigation to find out if hot, cold, or room temperature water is better for growing tomato plants.
I.V. = Temperature of Water
200
Donna performed an investigation to find out if a heavier or lighter ball would roll down a ramp faster.
D.V.= Speed of Ball
200
Greg performed an investigation to find out which color of bird feeders humming birds prefer.
Same locations of bird feeders, Same food in bird feeders, Same type of bird feeders
200
The "responding variable" is also known as...
Dependent Variable
300
The variable that is observed or measured in an experiment. This is the effect not the cause.
Dependent Variable
300
Harry performed an investigation to find out how temperature affects crystal growth.
I.V.= Different Temperatures
300
Jenny designed an experiment to find out which color absorbed the most heat.
D.V.= Amount of Heat Absorbed
300
Trevor performed an investigation to find out if soaking bean seeds would make the seeds sprout more quickly.
Same type of seeds, Same amount of water, Same temperature of water
300
The "same variables" are also known as...
Control Variables
400
Variables that stay the same so an experiment is fair and valid.
Constants or Controlled Variables
400
Wilber performed an investigation to find out if bigger or smaller parachutes created more drag.
I.V.= Size of Parachutes
400
Peter wondered if cooler temperatures would impact how quickly Venus Flytraps closed.
D.V.= Speed of Venus Flytraps Closing
400
Ramie performed an investigation to find out how pitch varied when he tapped bottles filled with different amounts of water.
Same size and shape of bottles, Same object used to tap bottles, Same force to tap bottles
400
The "manipulated variable" is also known as...
Independent Variable
500
A problem or error in an experiment that might affect the results.
Limitation(s)
500
Peter wondered how the period of a pendulum was dependent upon string length.
I.V.= Different String Lengths
500
Levi designed an experiment to test if yawning is contagious.
D.V.= Amount of Yawns
500
Trevor designed an experiment to find out which model bridge design can hold the most weight.
Same materials to make model bridges, Same size of model bridges, same weight increments
500
The "constants" are also known as...
Controlled Variables