Macro-elements; trace elements and ultra-trace elements Slideshow Play

Mass spectra of diatomic elements Animation Play

Mass spectra of the elements Student activity Play

Maxwell–Boltzmann distribution of molecular energies Student activity Play

Melting Student activity Play

Mixing of atomic orbitals: sp2 hybridisation Student activity Play

Mixtures Class activity Play

Mixtures Student activity Play

Mixtures and compounds Illustration Play

Modes of nutrition in bacteria Slideshow Play

Modes of nutrition in bacteria Student activity Play

Molar interpretation of chemical equations (1) Student activity Play

Molar mass and density of air Animation Play

Molar volume (2) Student activity Play

Molar volume (2) Whiteboard exercise Play

Molecular crystals Student activity Play

Molecular, molar and mass interpretations Animation Play

Molecules of nitrogen Animation Play

Molecules with more than one central atom Student activity Play

Motorisation and our environment Student activity Play

Multiple bonds Student activity Play

Multiple bonds Student activity Play

Multiple bonds and nitrogen atom Animation Play

Naming compounds with two elements Student activity Play

Natural carbon Animation Play