Purification of aluminium oxide, a chemical process Animation Play

Pyramids of energy and biomass Slideshow Play

Quantitative composition of a chemical compound Animation Play

Quantum atom model Animation Play

Radiation Whiteboard exercise Play

Radiation Student activity Play

Radiator Animation Play

Radioactivity Student activity Play

Radioactivity Illustration Play

Rain Animation Play

Ranges of chemical shifts for 1H atoms commonly found in organic molecules Chart Play

Ranges of chemical shifts for hydrogen atoms found in organic molecules Chart Play

Rate at which work is done Student activity Play

Rate at which work is done Whiteboard exercise Play

Rate equation and order of reaction Student activity Play

Reaction course under changing environmental conditions Animation Play

Reaction mechanisms Student activity Play

Reaction mechanisms Whiteboard exercise Play

Reaction of sodium with water Animation Play

Reaction of sodium, magnesium and aluminium with water Animation Play

Reaction of transition metals with hydrochloric acid Animation Play

Reaction of zinc metal with hydrochloric acid Animation Play

Reaction yields Student activity Play

Reactions between Group 1 and 2 metals and water Student activity Play

Reactions between halogens and metals Student activity Play