Refraction of light Student activity Play

Regular polyhedron Animation Play

Relation between enthalpy of solution and enthalpy of hydration Whiteboard exercise Play

Relationship between volumes of similar solids Student activity Play

Relationship between volumes of similar solids Whiteboard exercise Play

Riddles about 3-D shapes Student activity Play

Riddles about 3-D shapes Whiteboard exercise Play

Right prisms Whiteboard exercise Play

Role of cations in plant cells Slideshow Play

Role of macro-elements absorbed as cations Student activity Play

Salts of carboxylic acids Student activity Play

Sample compounds Slideshow Play

Sample formulae Illustration Play

Saturated and unsaturated compounds Animation Play

Sea water Student activity Play

Sea water game Whiteboard exercise Play

Sections of a cube Whiteboard exercise Play

Sections of a cube Student activity Play

Selected compounds with three or more elements Whiteboard exercise Play

Selected physical properties of oxides Chart Play

Separation of mixtures (1) Student activity Play

Shape of a solid body Whiteboard exercise Play

Shape of a solid body Student activity Play

Similar prisms and pyramids Student activity Play

Similar solids Whiteboard exercise Play