Determining the enthalpy of solution of sodium hydroxide Animation Play

Dichromate volcano Animation Play

Diffraction and interference Whiteboard presentation Play

Diffraction of electrons – the Davisson-Germer experiment Animation Play

Diffraction of electrons – the Davisson-Germer experiment Student activity Play

Diffraction of electrons – the Davisson-Germer experiment Whiteboard exercise Play

Discovery of elementary particles Student activity Play

Dropped pins Animation Play

Einstein's first postulate Whiteboard exercise Play

Einstein's postulates Student activity Play

Einstein's postulates Whiteboard exercise Play

Elementary analysis Animation Play

Elementary events Student activity Play

Engelmann's experiment Whiteboard exercise Play

Engelmann's experiment - light and photosyntheis Animation Play

Enthalpy changes Animation Play

Enthalpy of solution. Part 2 Student activity Play

Enzymes in a test-tube Student activity Play

Events Student activity Play

Events and experiments Animation Play

Events – coins Whiteboard exercise Play

Events – dice Whiteboard exercise Play

Experiment Animation Play

Experiment Animation Play

Experiment on energy substances of the organism and cell respiration Simulation Play