sunscreen effectiveness

[deleted-319205]

I was looking on the project idea that compares the effectiveness of different level spf sunscreens and I was having trouble coming up with the control, independent, and dependent variables.

[MadelineB]

Hello xiomariem,
Comparing the effectiveness of various sunscreens is an important and interesting project!
Is this the project you are interested in?
https://www.sciencebuddies.org/science- ... p015.shtml

To get you thinking about the different types of variables, I suggest that you read the Science Buddies project guide, in particular this section:

https://www.sciencebuddies.org/science- ... bles.shtml

Then read and re-read the procedures for the sunscreen project:

https://www.sciencebuddies.org/science- ... #procedure

Let us know if this helps and if you have more questions!