Science Buddies: "Ask an Expert"

Hi! I'm sciencegirlie and I need help! I want to know how many times I need to do my Science Fair Experiment before the Fair. I have lots of time because the fair is on May 16. My experiment is pretty easy so would twice be enough? Thanks for your input and time!

~sciencegirlie

Hi sciencegirlie!

There's a good explanation of that here on the Science Buddies site. Some experiments will give better information if they're done more, though- a survey project or a similar project involving humans or intelligent animals will usually be more accurate if it has at least twenty participants.

Good luck with your project!
Vysarge

Thanks so much!