Discriminant of the quadratic equation Whiteboard exercise Play

Displacement in harmonic motion Animation Play

Dissociation constants of conjugate acids and bases Whiteboard exercise Play

Dissociation constants of conjugate acids and bases Student activity Play

Dissociation constants of ethanoic acid and the ethanoate ion Animation Play

Dissociation of weak bases Animation Play

'Double quadratic' equations Student activity Play

'Double quadratic' equations Whiteboard exercise Play

Drag and drag coefficient Animation Play

Drag and drag coefficient Student activity Play

Drawing dots Whiteboard exercise Play

Drawing dots Student activity Play

Drawing graphs Student activity Play

Drawing graphs Simulation Play

Drawing the circle of the given equation Whiteboard exercise Play

Dried plums Whiteboard exercise Play

Effect of concentration on the reaction rate. Graphical methods Whiteboard presentation Play

Effect of concentration on the reaction rate. Graphical methods Class activity Play

Effect of concentration on the reaction rate. Rate equation Class activity Play

Effect of concentration on the reaction rate. Rate equation Whiteboard presentation Play

Effect of temperature on chemical equilibrium Whiteboard exercise Play

Effect of temperature on chemical equilibrium Student activity Play

Electrolysis Student activity Play

Electrolysis of molten salt Animation Play

Emmanuel's and Lena's number Whiteboard exercise Play