Patrick and Spongebob love to blow bubbles! The ads claim that Super Bubble soap will produce bubbles that are twice as big as regular bubble solution. Sample is made with 5 oz of Super Bubble soap and 5 oz of water, while the other is made with the same amount of water and 5 oz of regular bubble soap. Patrick and Spongebob used their favorite bubble wands to blow 10 different bubbles and did their best to measure each one. What is the independent variable and what is the dependent variable?
An independent variable is the potential stimulus or cause, usually directly manipulated by the experimenter, so it could also be called a manipulative variable.
A dependent variable is the response or measure of results.
The independent variable in this scenario is the type of bubble soap used: Super Bubble soap or regular bubble soap. This is the variable that is deliberately manipulated by Patrick and Spongebob.
The dependent variable in this scenario is the size of the bubbles blown by Patrick and Spongebob. This is the variable that is being measured and observed as the outcome or response to the different types of bubble soap used.