Diffraction Student activity Play

Diffraction and interference Whiteboard presentation Play

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

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

Diffraction of electrons – the Davisson-Germer experiment Animation Play

Discrete variables Slideshow Play

Dissolution Animation Play

Dot plot Student activity Play

Dot plot Animation Play

Dot plot – graphical representation of variables Whiteboard exercise Play

Drawing a graph of absolute value of the given function Whiteboard exercise Play

Dynamometer Simulation Play

Early attempts to classify chemical elements (2) Student activity Play

Eka-aluminium and eka-silicon Whiteboard exercise Play

Elimination the extreme values Animation Play

Energy value of fuel Animation Play

Energy value of some fuels Illustration Play

Energy-level diagram for the hydrogen atom Animation Play

Enthalpy Whiteboard exercise Play

Enthalpy Student activity Play

Enthalpy of hydration Student activity Play

Enthalpy of hydration Whiteboard exercise Play

Enthalpy of solution. Part 1 Student activity Play

Entropy Student activity Play

Entropy and spontaneous changes Student activity Play