Deriving Cartesian equations of a locus Student activity Play

Deriving function from equations Animation Play

Deriving function from equations Whiteboard exercise Play

Detecting the presence of certain elements in a chemical compound Animation Play

Determination of rate equations Student activity Play

Determination of rate equations Whiteboard exercise Play

Determination of reaction rate by measuring the volume or pressure of the gas evolved Student activity Play

Determination of the reducing or oxidising ability of a chemical species Animation Play

Different chemical reactions Slideshow Play

Different equations Student activity Play

Different physical and chemical properties of isomers Animation Play

Different types of chemical energy Slideshow Play

Different vector equations of the same line Animation Play

Differential equations Class activity Play

Differential equations Whiteboard presentation Play

Differential equations Student activity Play

Differential equations Whiteboard exercise Play

Digestive enzymes and chemical digestion Whiteboard exercise Play

Dinitrogen tetroxide – nitrogen dioxide chemical equilibrium Animation Play

Distinguish between a physical and a chemical change Whiteboard exercise Play

Distinguish between a physical and a chemical changes Whiteboard exercise Play

Does a chemical compound have a constant composition? Student activity Play

Does a chemical compound have a constant composition? Whiteboard exercise Play

'Double quadratic' equations Student activity Play

'Double quadratic' equations Whiteboard exercise Play