Determination of enthalpy change in combustion reactions Whiteboard exercise Play

Determination of enthalpy change in combustion reactions (1) Student activity Play

Determination of enthalpy change in combustion reactions (2) Student activity Play

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

Determining the concentration of a solution using titration Student activity Play

Determining the enthalpy of solution of sodium hydroxide Animation Play

Determining the mass of a solid Animation Play

Determining the relative molecular mass Animation Play

Development of technology and crop yields Slideshow Play

Different receptors for different stimuli Student activity Play

Diffusion Student activity Play

Diffusion Student activity Play

Diluting concentrated sulphuric(VI) acid with water Animation Play

Dilution of concentrated acids Student activity Play

Dispersion forces in halogens Animation Play

Dissipation of heat Animation Play

Dissolution of gases in water Student activity Play

Dissolution of gases in water Whiteboard exercise Play

Distance on the map Animation Play

Distances in reality Animation Play

Distances on a map Animation Play

Diurnal changes in the body temperature of the camel Animation Play

Drawing a plan Whiteboard exercise Play

Drawing a plan Student activity Play

Drawing the graph of an altered function Student activity Play