Reactions between halogens and metals Student activity Play

Reactions occurring at the electrodes Student activity Play

Relative abundance of isotopes and mass spectra Student activity Play

Relative mass and charge Animation Play

Rutherford's atomic model Student activity Play

Rutherford's experiment Animation Play

Rutherford's experiment Whiteboard exercise Play

Rutherford's model of the atom Animation Play

Rutherford’s atomic model Animation Play

Salts of strong acids and weak bases Student activity Play

Salts of strong acids and weak bases Whiteboard exercise Play

Salts of weak acids and weak bases Student activity Play

Semiconductors Animation Play

Sensors Animation Play

Size of electric current Whiteboard exercise Play

Size of electric current Student activity Play

Size of electric current Animation Play

Slowing down of neutrons Animation Play

Small numbers Student activity Play

Standard enthalpy change. Hess’s law Whiteboard presentation Play

Standard enthalpy change. Hess’s law Class activity Play

Standard enthalpy of atomisation Student activity Play

Standard enthalpy of atomisation of metals Animation Play

Stars Student activity Play

Stars Whiteboard exercise Play