A ray of light Whiteboard exercise Play

A ray of light Student activity Play

A source of light Whiteboard exercise Play

A source of light Student activity Play

A virtual image in a mirror Animation Play

Aberration Animation Play

About cells Student activity Play

Absorption of light by transition metal ions Animation Play

Absorption of visible light Animation Play

Absorption of visible light. Colorimetry Whiteboard presentation Play

Absorption of visible light. Colorimetry Class activity Play

Adaptation of photoautotrophs to wavelength of light Illustration Play

Adaptations of plants to light conditions Slideshow Play

Adaptations of predators and prey Illustration Play

Adaptations to life on land Slideshow Play

An angle and points on the circle Whiteboard exercise Play

An angle and points on the circle Student activity Play

An angle as a rotation Whiteboard exercise Play

An angle as a rotation Student activity Play

An image formed by a concave mirror Animation Play

An image in a mirror Simulation Play

An image in a mirror Student activity Play

An object brought closer to the focal point Animation Play

An object brought closer to the mirror Animation Play

Analysis of photographs Slideshow Play