Corrosion Source
Corrosion Source: Manganese
This resource presents a good summary of the history, properties, sources, uses and handling concerns of manganese. Also contains some basic data.
University of Kentucky
Uk: Manganese Comics
A pair of comic strips where magnesium figures prominently. Interesting and fun. Could be nice visuals for a presentation.
Florida-Spectrum Environmental Services
Florida Spectrum: Chemical Fact Sheet: Manganese
A concise summary of manganese, its properties, uses and compounds.
TED Talks
Ted: Ted Ed: Manganese: Periodic Table of Videos
The team at Periodicvideos has created a TED-Ed Lesson for every element of the periodic table. This one is about manganese- element number 25 and a metal with a very rich chemistry.