Spectrum of electromagnetic radiation Illustration Play

Spectrum of electromagnetic waves Whiteboard exercise Play

Spectrum of electromagnetic waves Illustration Play

Spectrum of hydrogen Whiteboard exercise Play

Spectrum of hydrogen Student activity Play

Speed of light in transparent materials Illustration Play

Spontaneous and stimulated emission Student activity Play

Spruces and pines Animation Play

Starch Slideshow Play

Statements about dispersion of light Whiteboard exercise Play

Statements about light Whiteboard exercise Play

Statements about refraction of light Whiteboard exercise Play

Statements about seeing Whiteboard exercise Play

Stimuli and receptors Student activity Play

Stimuli and receptors Whiteboard exercise Play

Storm Animation Play

Structure of arthropods Slideshow Play

Structure of the light microscope Animation Play

Sun Animation Play

Sunglasses with a polariser Animation Play

Temperature Student activity Play

The activity of auxins Animation Play

The angle of incidence and the angle of refraction Animation Play

The aquatic environment Slideshow Play

The area of umbra Animation Play