Determination of enthalpy change in combustion reactions (2) Student activity Play

Determining standard enthalpies of reaction Whiteboard exercise Play

Determining the mean bond enthalpy for polyatomic molecules Animation Play

Development - energy Slideshow Play

Development - waste Slideshow Play

Different forms of energy Simulation Play

Different types of chemical energy Slideshow Play

Different types of energy Animation Play

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

Digital systems Whiteboard presentation Play

Digital systems Class activity Play

Digital systems Whiteboard presentation Play

Digital systems Class activity Play

Dioxins Student activity Play

Discharging a battery. Accumulators. Student activity Play

Discharging a battery. Accumulators. Whiteboard exercise Play

Discovery of elementary particles Whiteboard exercise Play

Discovery of elementary particles Student activity Play

Dissolving ionic compounds in water Student activity Play

Disturbances Animation Play

DNA; RNA and protein synthesis Student activity Play

DNA; RNA and protein synthesis Whiteboard exercise Play

Do catalysts affect the reaction equilibrium? Animation Play

Do households affect ecosystems? Student activity Play

Drawing circuits Student activity Play