/-/https/www.sciencebuddies.org/cdn/Files/21464/5/sb-logo.png){kind=logo}
/-/https/www.sciencebuddies.org/cdn/Files/21464/5/sb-logo.png){kind=logo}
Help with Graphs
Moderators: AmyCowen, kgudger, bfinio, MadelineB, Moderators
-
deleted-538904
- Posts: 1
- Joined: Wed Jan 03, 2018 1:41 pm
- Occupation: Student
Help with Graphs
For my science fair project I decided to do what kind of liquid cleans a Tarnished penny the best. I gathered 5 liquids and let equally tarnished pennies sit in them overnight. I have already finished the expirement but I am not sure how I will put the changes I've noticed into graphs without eyeballing the before and after photos of my pennies. Can someone please give me some ideas or advice, thanks!
-
deleted-473898
- Former Expert
- Posts: 102
- Joined: Thu Aug 17, 2017 9:23 am
- Occupation: Student
Re: Help with Graphs
Hi JessicaSimpson,
You could come up with a "tarnish scale" and rank the pennies based on their appearance (i.e. from 1-10, 10 is "very tarnished" and 1 is "completely clean.") This scale will, however, be somewhat subjective. You could also use photo color analysis software (look some up on the internet - I found one called "Image J" that might work, and it's free) to analyze the percentages of tarnish color on the surface of the penny and graph the percentages. I hope this helps!
Sincerely,
Elena
You could come up with a "tarnish scale" and rank the pennies based on their appearance (i.e. from 1-10, 10 is "very tarnished" and 1 is "completely clean.") This scale will, however, be somewhat subjective. You could also use photo color analysis software (look some up on the internet - I found one called "Image J" that might work, and it's free) to analyze the percentages of tarnish color on the surface of the penny and graph the percentages. I hope this helps!
Sincerely,
Elena