Colours of indicators Student activity Play

Concentration of hydrogen and hydroxide ions in pure water Animation Play

Counting bacteria Student activity Play

Critical angle Student activity Play

Culturing bacteria Student activity Play

Derivation of the formula Animation Play

Derivation of the formula Animation Play

Determination of the acidic properties of ethanol Animation Play

Do alcohols have acidic properties? Student activity Play

Drag and drag coefficient Whiteboard exercise Play

Drag and drag coefficient Student activity Play

Drag and drag coefficient Animation Play

Drag and drag coefficient Illustration Play

Dynamic equilibrium Student activity Play

Dynamic equilibrium Simulation Play

Electromagnetic waves Student activity Play

Electromagnetic waves Whiteboard exercise Play

Electron configuration of the alkaline earth metals Animation Play

Energy, power and intensity of a wave Animation Play

Energy, power and intensity of a wave Student activity Play

Factors that determine the properties of soil Slideshow Play

Fermat's principle Student activity Play

Fermat's principle Simulation Play

Fermat's principle Whiteboard exercise Play

Fermat's Principle Student activity Play