Enlarging the right-angled triangle – the basic property Simulation Play

Enlarging the square Simulation Play

Enlarging the square – the basic property Simulation Play

Environmental variation of the arrowhead Animation Play

Enzymes are proteins Student activity Play

Example of giant molecular solid: silicon dioxide Simulation Play

Example of simple molecular solid: carbon dioxide Simulation Play

Exceptional properties of some giant molecular solids Whiteboard exercise Play

Exceptional properties of some giant molecular solids Student activity Play

Factors affecting dispersion forces Animation Play

Factors affecting dispersion forces Student activity Play

Factors affecting particles Student activity Play

Factors affecting particles Animation Play

First steps in microbiology Student activity Play

Fixed-end reflection Simulation Play

Fixed-end reflection Student activity Play

Focal length and the shape of a lens Simulation Play

Focal length and the shape of a lens Student activity Play

Focal length and the shape of a lens Whiteboard exercise Play

Focusing of rays Simulation Play

Focusing of rays Student activity Play

Formation of oxides Student activity Play

Formation of oxides Whiteboard exercise Play

Formulae of compounds Student activity Play

Free-end reflection Simulation Play