Colours Whiteboard exercise Play

Colours Class activity Play

Colours of flags in different colours of light Whiteboard exercise Play

Colours of the spectrum Illustration Play

Communication – bilateral exchange of information Student activity Play

Conversion of dinitrogen tetroxide to nitrogen dioxide Animation Play

Daltonism Slideshow Play

Danger – methanol! Student activity Play

Determination of reaction rate by mass, conductometric and colorimetric measurements Student activity Play

Digital encoding of images Slideshow Play

Digital encoding of images Student activity Play

Digital encoding of images Whiteboard exercise Play

Discontinuous variation Student activity Play

Discontinuous variation - activity Whiteboard exercise Play

Diseases caused by atherosclerosis and arterial hypertension Student activity Play

Diseases caused by tobacco-smoking Student activity Play

Dispersion of light Student activity Play

Dispersion of light from a diffraction grating Animation Play

Dispersion of light from a diffraction grating Whiteboard exercise Play

Dispersion of light from a diffraction grating Student activity Play

Doppler effect for different waves Student activity Play

Dynamic state of chemical equilibrium Student activity Play

Flags in coloured light Simulation Play

Flame test Animation Play

Flame tests Student activity Play