Cooper–zinc cell Animation Play

Coulomb's Law Student activity Play

Coulomb's Law Illustration Play

Coulomb's Law Whiteboard exercise Play

Covalent bonding (2) Student activity Play

Covalent bonding and dissociation Animation Play

Decimals Class activity Play

Decimals Whiteboard presentation Play

Decomposition of ammonia on a metal surface Animation 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. Whiteboard exercise Play

Discharging a battery. Accumulators. Student activity Play

Discharging a battery. Accumulators. Animation Play

Discovery of electron Animation Play

Discovery of elementary particles Student activity Play

Discovery of proton Animation Play

Division with remainder Student activity Play

Division with remainder – positive numbers Whiteboard exercise Play

DNA in living organisms Student activity Play

Early atomic theories Student activity Play

Effect of ΔH° and ΔS° on free energy change Student activity Play

Electric charge Animation Play

Electric field Simulation Play