Properties of solids Whiteboard exercise Play

Properties of solids: a microscopic view Animation Play

Provision and emission of heat Whiteboard exercise Play

Provision and emission of heat Student activity Play

Pythagorean theorem in 3-dimensional space Whiteboard exercise Play

Pythagorean theorem in 3-dimensional space Student activity Play

Questions about the physical changes Whiteboard exercise Play

Radiation of heat Student activity Play

Radiation of solids Student activity Play

Reaction of potassium bromide and potassium iodide with sulphuric acid Animation Play

Reactions between metal halides and concentrated sulphuric acid Student activity Play

Reactions between metal halides and sulphuric acid Animation Play

Reactions occurring on the surface of a solid catalyst Student activity Play

Reactions occurring on the surface of a solid catalyst Whiteboard exercise Play

Refraction of light Student activity Play

Regular polyhedron Animation Play

Relationship between volumes of similar solids Whiteboard exercise Play

Relationship between volumes of similar solids Student activity Play

Restricted rotation around the C=C bond Animation Play

Riddles about 3-D shapes Whiteboard exercise Play

Riddles about 3-D shapes Student activity Play

Right prisms Whiteboard exercise Play

Sample compounds Slideshow Play

Saturated and unsaturated compounds Animation Play

Sections of a cube Student activity Play