Demonstrate the ability to write a testable hypothesis related to bottled water and tap water.
What question are you trying to answer?
What is your hypothesis?
How will you go about testing your hypothesis?
Why is it poor science to be one of the subjects for the experiment?
Why are multiple samples important?
What are you expecting from your results?
Were your results what you expected?
Was your hypothesis supported? Either way, write your explanation as to why your hypothesis was/was not supported.