Is it easy to distinguish between a physical change and a chemical change? Student activity Play

Isomerisation of cis-but-2-ene Animation Play

John Dalton's atomic theory Animation Play

Kinetic energy of the colliding molecules Animation Play

Le Chatelier's principle Student activity Play

Le Chatelier's principle for gas reactions Student activity Play

Least useful chemical reactions Student activity Play

Major sources of energy Slideshow Play

Measuring the volume of gas evolved Animation Play

Mendeleev's table Animation Play

Methods for metal extraction Student activity Play

Minerals and ores Student activity Play

Minerals and ores Whiteboard exercise Play

Molar interpretation of chemical equations Whiteboard exercise Play

Molar interpretation of chemical equations Whiteboard exercise Play

Molar interpretation of chemical equations (1) Student activity Play

Molar interpretation of chemical equations (2) Student activity Play

Molar mass of the gas Whiteboard exercise Play

Most useful chemical reactions Student activity Play

Names and chemical symbols of isotopes Animation Play

Names and symbols of elements Animation Play

Natural science in Darwin's time Slideshow Play

Nervous and chemical regulation of respiratory movements Student activity Play

Neutralising acid Simulation Play

Non-polar molecules Animation Play