Redox reactions around us Student activity Play

Reforming of crude oil Student activity Play

Reforming of crude oil Whiteboard exercise Play

Regulation of blood glucose concentration Slideshow Play

Regulation of blood glucose level by glucagon Animation Play

Regulation of blood glucose level by insulin Animation Play

Regulation of glucose concentration in the blood Slideshow Play

Regulation of glucose level in the blood Whiteboard presentation Play

Regulation of glucose level in the blood Class activity Play

Relationship between photosynthesis and plant respiration Student activity Play

Relative abundance of isotopes and mass spectra Student activity Play

Relative molecular mass Animation Play

Relative molecular mass Student activity Play

Resonance energy for benzene Animation Play

Respiration Student activity Play

Respiration Class activity Play

Respiratory surfaces Whiteboard presentation Play

Respiratory surfaces Class activity Play

Reversible and irreversible reactions Student activity Play

Reversible reaction Animation Play

Role of the kidneys in regulating water-electrolyte balance – Part 1 Whiteboard presentation Play

Role of the kidneys in regulating water-electrolyte balance – Part 1 Class activity Play

Role of thyroid hormones Slideshow Play

Rupture of the DNA molecule Slideshow Play

Salts of strong acids and weak bases Whiteboard exercise Play