Re: Reaction time
Posted: Tue Mar 24, 2009 8:02 pm
Thanks a ton! that's perfect! 
If you have a question about your science fair project, you are in the right place!
https://www.sciencebuddies.org/science-fair-projects/ask-an-expert/
https://www.sciencebuddies.org/science-fair-projects/ask-an-expert/viewtopic.php?t=4892