Composition of some alloys Slideshow Play

Composition of the Earth's crust Slideshow Play

Composition of the Earth's crust Illustration Play

Composition of the Earth's crust Student activity Play

Conductivity Student activity Play

Conductivity Simulation Play

Copper sulphide Animation Play

Copper sulphide Student activity Play

Copper sulphide ore Slideshow Play

Cracking Slideshow Play

Cracking and combustion of hydrocarbons Class activity Play

Cracking and combustion of hydrocarbons Whiteboard presentation Play

Deficiency of macro-elements Whiteboard exercise Play

Detecting the presence of certain elements in a chemical compound Animation Play

Determination of enthalpy change in combustion reactions Whiteboard exercise Play

Determination of enthalpy change in combustion reactions (1) Student activity Play

Determination of enthalpy change in combustion reactions (2) Student activity Play

Determination of reaction rates Student activity Play

Determining the formula of a compound knowing the valence of its elements Student activity Play

Different types of energy Animation Play

Dioxins Student activity Play

Discovery of noble gases Animation Play

Displacement reactions Student activity Play

Displacement reactions Glossary Play

Dissolving ionic compounds in water Student activity Play