Reduction Slideshow Play

Refraction of light Student activity Play

Repeated percentage change Class activity Play

Repeated percentage change Whiteboard presentation Play

Representative values of chemical shifts Animation Play

Reversible reactions and chemical equilibrium Class activity Play

Reversible reactions and chemical equilibrium Whiteboard presentation Play

Reversing the percentage change Student activity Play

Reversing the percentage change Whiteboard exercise Play

Rusting Simulation Play

Rutherford's experiment Animation Play

s-block elements Animation Play

Safety in the chemical laboratory Whiteboard presentation Play

Safety in the chemical laboratory Class activity Play

Slope of a line Student activity Play

Smelting lead Animation Play

Solid-liquid phase change Whiteboard exercise Play

Solid-liquid phase change Student activity Play

Solubility Animation Play

Solving problems involving percentages Class activity Play

Solving problems involving percentages Whiteboard presentation Play

Something to eat and drink in the Internet Café Whiteboard exercise Play

Something to eat and drink in the Internet Café Student activity Play

Spectroscopy and electromagnetic radiation Student activity Play

Spontaneity of the process Whiteboard exercise Play