Reasons for the high reactivity of alkenes (1) Student activity Play

Reduction of aldehydes and ketones (2) Student activity Play

Reflecting telescopes Animation Play

Reflecting telescopes Student activity Play

Reflecting telescopes Whiteboard exercise Play

Relationship between the electromagnetic force and the length of a conductor Whiteboard exercise Play

Relationship between the electromagnetic force and the length of a conductor Student activity Play

Relationship between the electromagnetic force and the length of a conductor Slideshow Play

Reliability of demonstration Animation Play

Resistance of a wire Animation Play

Resistance of a wire – a case study Student activity Play

Resonance Student activity Play

Resonance Whiteboard exercise Play

Resonance energy for benzene Animation Play

Restricted rotation around the C=C bond Animation Play

Resultant velocity Simulation Play

Resultant velocity Student activity Play

Rounding decimals to 0.01 Student activity Play

Rounding decimals to 0.1 Student activity Play

Rounding decimals to the nearest 0.01 Whiteboard exercise Play

Saturated and unsaturated – what do they mean? Animation Play

Scale factor Student activity Play

Secondary structure of proteins Whiteboard exercise Play

Secondary structure of proteins Student activity Play

Sectors and segments Student activity Play