Spherical mirrors Animation Play

Spherical mirrors Student activity 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

The arithmetic mean of the measurements of the speed of light Whiteboard exercise Play

The astronomical unit Whiteboard exercise Play

The astronomical unit Student activity Play

The Bohr model of the atom Class activity Play