Use five different types of sunscreens. Describe an experimental design and set

Use five different types of sunscreens.
Describe an experimental design and setup to test the sunscreens protection from UV light. Make sure to identify the independent, dependent, and control variables. How many groups will you have? What will you measure? How?
Your experiment should show the steps that an investigator should perform.
Name the independent variable in my example UV bead experiment.
Name the dependent variable in my example UV bead experiment.
Name one controlled or standard variable in my example UV bead experiment.