Health monitoring requirements: Is health monitoring for exposure to hazardous chemicals required for chemicals in the List of Recommended Chemicals/ Chemical Management Handbook?

Health monitoring requirements: Is health monitoring for exposure to hazardous chemicals required for chemicals in the List of Recommended Chemicals/ Chemical Management Handbook?
Soldering: Is it okay for students to do soldering using the tin/lead solder?
Disposal of potassium permanganate and glycerol reaction: How do I safely dispose of the products of the exothermic reaction between potassium permanganate and glycerol conducted in a mortar and pe
Nitrogen dioxide gas is used to demonstrate Le Chatelier’s principle of equilibrium.
Whoosh bottle: Is using isopropanol as a fuel safer than using ethanol or methanol?
This downloadable resource looks at verifying the movement of tectonic plates.
This downloadable resource involves an activity that investigates the densities of rocks.
Precipitation reactions: I am looking for precipitate reactions that have the least impact on the environment but are also dramatic. Do you have any suggestions?
Microscale Chemistry: Can you provide some information on microscale chemistry please?
Potassium metal: Is potassium metal permitted for demonstrations?