A magnifying glass Student activity Play

A magnifying glass Whiteboard exercise Play

A refracting telescope Student activity Play

A refracting telescope Animation Play

A virtual image in a mirror Animation Play

Ability to colour litmus blue Animation Play

Ability to colour litmus red Animation Play

Absorption of visible light. Colorimetry Class activity Play

Absorption of visible light. Colorimetry Whiteboard presentation Play

Accommodation Animation Play

Accommodation of the eye Animation Play

Acids (2) Student activity Play

Adjusting sharpness Simulation Play

Adjusting sharpness Student activity Play

All electromagnetic waves transmit energy Whiteboard exercise Play

An eye Class activity Play

An eye Whiteboard presentation Play

An image formed by a magnifying glass Animation Play

An image in a mirror Student activity Play

Antagonistic actions of the autonomic nervous system Student activity Play

Application of chlorine Slideshow Play

Autonomic reflex arcs Student activity Play

Bases (2) Student activity Play

Binoculars Student activity Play

Buffer range Whiteboard exercise Play