Recycling of aluminium Slideshow Play

Recycling of aluminium Whiteboard exercise Play

Recycling of paper, glass and metal Student activity Play

Redox reactions around us Slideshow Play

Redox reactions around us Student activity Play

Refraction of light Student activity Play

Refraction of light Student activity Play

Refraction of plane waves Simulation Play

Refraction of plane waves Student activity Play

Refrigerator Whiteboard exercise Play

Refrigerator Student activity Play

Regulation of volume of extracellular fluid Slideshow Play

Regulation of water balance in human Simulation Play

Regulation of water balance – the role of antidiuretic hormone Student activity Play

Regulation of water balance – the role of antidiuretic hormone Whiteboard exercise Play

Regulation of water loss in desert animals Whiteboard presentation Play

Regulation of water loss in desert animals Class activity Play

Relationship between momentum and energy Whiteboard exercise Play

Relationship between momentum and energy Student activity Play

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

Relationships between free energy and metabolic reactions Whiteboard exercise Play

Relative abundance of isotopes and mass spectra Student activity Play

Relative molecular mass Student activity Play

Relativity of potential energy Animation Play