What affects refraction? Whiteboard exercise Play

What affects the colour of transition metal compounds Animation Play

What is colour? Animation Play

What is colour? Student activity Play

What is light? Student activity Play

What is light? Simulation Play

White light Student activity Play

Why does the electronegativity change across a period? Animation Play

Why don't solids change their shape spontaneously? Animation Play

Why ecosystems change Slideshow Play

Work and change in potential energy Animation Play

Work causes a change in energy Whiteboard exercise Play

Work causes a change in energy Simulation Play

Work causes a change in energy Student activity Play

Worked examples Student activity Play

X-ray radiation Student activity Play

 When a function does not change its sign Animation Play