Density Whiteboard presentation Play

Density of gases Student activity Play

Density of gases Whiteboard exercise Play

Depletion of the Earth's ozone layer Student activity Play

Detection of oxygen Animation Play

Detection of some gases Student activity Play

Determination of enthalpy change in combustion reactions (1) Student activity Play

Determination of formulae of compounds Whiteboard exercise Play

Determination of molecular structure Student activity Play

Determination of rate equations Student activity Play

Determining the electron configuration on the basis of the periodic table Student activity Play

Determining the empirical formula Student activity Play

Determining the empirical formula Whiteboard exercise Play

Determining the formula of a compound knowing the valence of its elements Student activity Play

Determining the molecular formula Animation Play

Development of the embryo Student activity Play

Development of the embryo Simulation Play

Diatomic molecules Student activity Play

Differences between terrestrial and aquatic environments Student activity Play

Diffusion Animation Play

Diffusion across the plasma membrane Whiteboard exercise Play

Diffusion in gases Student activity Play

Discovery of noble gases Animation Play

Dissolution of gases in water Student activity Play

Distillation of liquid air Animation Play