Comments

Author Comment Last activity Moderation
mimiss "Could this demonstration be linked back to the particle size (2.5 microns) that the air sensor is set to detect? Maybe start a discussion on which ..." | Read more » over 1 year ago
mimiss " Here's an example of teaching with similar air sensors from the EPA: https://www3.epa.gov/airnow/teachers/gh_pmsensorkit_handoutandinstructions.pdf " | Read more » over 1 year ago
mimiss "Do you have any photos of how the stains worked out? Or maybe notes on what concentrations of dye were too little/too much? " | Read more » over 1 year ago
mimiss "I did this! " | Read more » over 1 year ago