Colours and physical states of metals Slideshow Play

Comparison of metals with non-metals Whiteboard exercise Play

Compound measures – density Student activity Play

Conducting electricity Student activity Play

Conducting electricity Simulation Play

Conducting electricity Whiteboard exercise Play

'Cool' plasma Animation Play

Cooper–zinc cell Animation Play

Decomposition of ammonia on a metal surface Animation Play

Definition of density Slideshow Play

Definition of density Student activity Play

Democritus' and Dalton's atomic theories Student activity Play

Democritus's atomic theory Animation Play

Density and the molecular structure of matter Student activity Play

Determining the signs of the electrodes in a cell Animation Play

Diagnosis of coronary heart disease Student activity Play

Diagnosis of coronary heart disease Slideshow Play

Discharging a battery. Accumulators. Animation Play

Discharging a battery. Accumulators. Whiteboard exercise Play

Discharging a battery. Accumulators. Student activity Play

Discovery of electron Animation Play

Discovery of elementary particles Student activity Play

Dissolving noble metals Animation Play

Early atomic theories Student activity Play

Electrical conductivity Slideshow Play