cell phone spectrophotometer
Posted: Fri Oct 07, 2016 9:35 am
i can't think of a hypothesis for this project. help!!!
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=16609