A classroom activity by RET teacher Jesse Kasehagen
of Santa Barbara Middle School providing exposure to basic electronics using low-cost material by utilizing "Manylabs.com
" arduino sensors and "Bare Paint" conductive carbon paint.
This lab leads students through experiments measuring the change in resistance of pieces of paper painted with a dilution series of watered-down conductive paint. Students also simultaneously measure the amount of light transmitted through these sheets and compare the two sets of data. The conductive properties of graphite are due to it being composed of many layers of graphene. Details and more information on this activity are available HERE