Curated OER
Fingerprinting Lab
Students recover latent prints by iodine fuming, cyanoacrylate fuming, and dusting with powder, after a lecture/discussion on fingerprinting techniques. They each provide a fingerprint for identification by another student. A database of...
Curated OER
What is the Percentage of Copper in "Copper" Coins?
Whether in the UK or in the US, the mass of the copper in a copper alloy penny can be determined. If you are in the US, just note that on the lab sheet, a penny is identified as a "1p piece." The penny is dissolved by young chemists in...
Curated OER
Sublimation
Students investigate sublimation and deposition using moth balls and toilet bowl freshener. In this sublimation lesson plan, students make a water bath and use two small beakers inside 2 larger beakers with moth balls in one and toilet...