Science Buddies: "Ask an Expert"

I am beginning to test my experiment and I was wondering if there is any tips.
Below is the web addresses for my project.
https://www.sciencebuddies.org/science- ... p010.shtml
I did make a few changes. For example, I am testing what hair color expands the most in humid weather Please help
Sincerely, Michelle Garcia 7th grade

Hi Michelle,

Is there a specific question you have or a step of the procedure that is confusing? If you're just beginning to test your project the best "tip" is to follow the procedure very, very carefully. If something turns out unexpectedly, go back to the procedure and make sure you didn't do a step incorrectly.