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

Dielectric constant Student activity Play

Dielectric constant Animation Play

Dielectric constant Whiteboard exercise Play

Dielectric constant Animation 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

Diode Whiteboard presentation Play

Diode Class activity Play

Dioxins Student activity Play

Discharging a battery. Accumulators. Animation Play

Discharging a battery. Accumulators. Whiteboard exercise Play

Discharging a battery. Accumulators. Student activity Play

Discovery of elementary particles Student activity Play

Discovery of elementary particles Whiteboard exercise Play

Displace metal from a solution Animation Play

Displacement of metals from solutions of their salts by other metals Student activity Play

Dissolving ionic compounds in water Student activity Play

Do catalysts affect the reaction equilibrium? Animation Play

Do households affect ecosystems? Student activity Play