Emission of electrons Whiteboard exercise Play

Emission of gamma rays Animation Play

Emission of hydrocarbons Animation Play

Emission of light Slideshow Play

Emission of light Animation Play

Emission of light Student activity Play

Emission of light Whiteboard exercise Play

Emission of nitrogen oxides Animation Play

Emission spectrum Animation Play

Emission spectrum of excited atoms Animation Play

Energy levels Student activity Play

External photoelectric effect Whiteboard presentation Play

External photoelectric effect Class activity Play

Fermat's Principle Student activity Play

Fossil fuels Student activity Play

Frequency of magnetic waves Illustration Play

Frequency of magnetic waves Student activity Play

Global warming: probable causes and prevention Student activity Play

Health effects of dioxins Slideshow Play

Heat balance Animation Play

Heat transfer Class activity Play

Heat transfer Animation Play

Heat transfer Whiteboard presentation Play

How does an earthquake start? Student activity Play

How is coherent light generated? Student activity Play