Echolocation Animation Play

Echolocation Whiteboard exercise Play

Echolocation in bats Whiteboard exercise Play

Electromagnetic waves Student activity Play

Electromagnetic waves Student activity Play

Electromagnetic waves Whiteboard exercise Play

Electromagnetic waves emission Animation Play

Energy and amplitude Student activity Play

Energy transfer Student activity Play

Energy transfers Whiteboard exercise Play

Energy, amplitude and loudness Animation Play

Energy, power and intensity of a wave Animation Play

Energy, power and intensity of a wave Student activity Play

Energy, power and intensity of a wave Whiteboard exercise Play

Energy, power and intensity of a wave Animation Play

Examples of energy-wasting Slideshow Play

Examples of wasted energy Student activity Play

Excitability – a special feature of the neurone plasma membrane Student activity Play

Features of receptors Slideshow Play

Fermat's principle Simulation Play

Fermat's principle Whiteboard exercise Play

Fermat's principle Student activity Play

Fibre optic cables Animation Play

Fibre optic cables Student activity Play

Field changes Whiteboard exercise Play