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The variable that is measured as the result is called...
 
dependent variable
 
independent variable
 
control variable
 
measurable variable
How many independent variables are in a fair test?
 
ONE
 
as many as possible
 
two
 
it depends
The variable that is changed on purpose is called?
Independent variable
Factors that can change in an experiment are called?
Variables
What is the effect of increasing the volume of water on the plants growth? What variables would need to be controlled?
amount of sunlight, type of plant, soil
If I increase the volume of water, then the height of the plant will increase.  What is the dependent variable?
Height of the plant
What is a hypothesis?
It is a statement of what you believe will happen based on the information you have gathered.
A study was done to find if different tire treads affect the braking distance of a car. Identify the independent variable
Tire tread
A student wants to find out if sleeping has an effect on his test scores. Identify the dependent variable.
Test score
A student wants to find out if sleeping more would affect his test scores. Identify the independent variable.
Sleeping hours
A student wants to investigate the effect of different liquids on the height of the plant. State 2 variables that should be controlled.
Any two: (Type of soil, volume of liquid, intensity of light, type of plant)
A student wants to investigate the effect of different liquids on the height of the plant. Determine the dependent variable.
Height of plant (cm)
A student wants to investigate the effect of different liquids on the height of the plant. Determine the independent variable.
Type of liquid
A doctor gave the same patient, different numbers of pills each day, the doctor measured the level of histamine (chemical) in his body. Determine the dependent variable.
Level of histamine
A doctor gave the same patient, different numbers of pills each day, the doctor measured the level of histamine (chemical) in his body. Determine the independent variable.
Number of pills
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