unit 3 - variables Flashcards
1
Q
what are the 3 types of variables
A
independent
dependent
control
2
Q
what is an independent variable
A
the variable that you can change or alternate
3
Q
what is the dependent variable
A
what you are measuring
4
Q
what is a control variable
A
something that stays the same through the experiment
5
Q
what is an extraneous variable
A
something that is not the primary interest in the study but could affect the dependent variable
6
Q
what are some examples of extraneous variables
A
time of day
weather
noise levels
temperature
7
Q
what are examples of control variables
A
volume of solution
concentration of solution
distance
time taken
8
Q
what are some examples of dependent variables
A
time taken
permeability
plant growth
blood pressure
heart rate
