Reactions of the carboxyl group Student activity Play

Reduction of aromatic nitro compounds Animation Play

Reforming of crude oil Student activity Play

Relationship between the atomic structure and the position of elements in periods Animation Play

Relative molecular mass Student activity Play

Resonance energy for benzene Animation Play

Resonance structures for benzene Animation Play

Resonance structures of benzene Whiteboard exercise Play

Resonance structures of benzene Student activity Play

Retina structure Animation Play

Ribosomes – structure and function Slideshow Play

Rockets Student activity Play

Rockets Whiteboard exercise Play

Ruminant stomach – structure and function Animation Play

Saturated and unsaturated hydrocarbons Illustration Play

Scintillation counter Student activity Play

Scintillation counter Whiteboard exercise Play

Secondary structure of proteins Whiteboard exercise Play

Secondary structure of proteins Student activity Play

Secondary structure of proteins – α-helix Animation Play

Secondary structure of proteins – β-pleated sheet Animation Play

Seismic waves Student activity Play

Seismic waves Animation Play

Selected physical properties of oxides Chart Play

Sex structure of populations Slideshow Play