Proton NMR spectrum of propanal Animation Play

Protons and electrons Student activity Play

Protons and electrons Whiteboard exercise Play

Pulsar signal Whiteboard exercise Play

Quality factor Chart Play

Quarks Whiteboard exercise Play

Quarks Student activity Play

Quarks Animation Play

Quartet and other multiplets: 'n + 1' rule Animation Play

Radio waves and microwaves Student activity Play

Radioactive decay Student activity Play

Reaction of ammonia with water Animation Play

Recording a proton NMR spectrum Student activity Play

Recording of analogue and digital signals Animation Play

Recording proton NMR spectrum Whiteboard exercise Play

Recording proton NMR spectrum of propanone Animation Play

Relative atomic mass and relative molecular mass Student activity Play

Relative atomic mass and relative molecular mass Animation Play

Representative values of chemical shifts Animation Play

Resistance to disturbances Animation Play

Resting and action potentials of a neurone Student activity Play

Salts of strong acids and weak bases Student activity Play

Satellite navigation systems Student activity Play

Satellite navigation systems Whiteboard exercise Play

Satellite telephony Slideshow Play