Reflectors Student activity Play

Reflectors Whiteboard exercise Play

Reflectors Slideshow Play

Refraction Class activity Play

Refraction of light Student activity Play

Refraction of light Class activity Play

Refraction of light Whiteboard presentation Play

Refraction of plane waves Student activity Play

Refraction of plane waves Animation Play

Relationship between the wavelength and the energy of an electromagnetic wave Animation Play

Resonance Student activity Play

Resonance Animation Play

Resonance Student activity Play

Rutherford's atomic model Student activity Play

Rutherford's experiment Animation Play

Rutherford’s atomic model Simulation Play

Rutherford’s atomic model Whiteboard exercise Play

Satellite navigation systems Student activity Play

Satellite telephony Slideshow Play

Satellite television Student activity Play

Satellite television Slideshow Play

Seismic waves Class activity Play

Seismic waves Whiteboard presentation Play

Seismic waves Student activity Play

Seismic waves and the inside of the Earth Whiteboard exercise Play