Variable oxidation states – vanadium, cobalt, nickel and zinc Whiteboard exercise Play

Water and ice at equilibrium Animation Play

Water in a container Animation Play

Water in different states Slideshow Play

Water, nitrogen and lead Slideshow Play

Wetting and meniscus Whiteboard exercise Play

Wetting and meniscus Student activity Play

Wetting of the sides of a container Animation Play

What affects the colour of transition metal compounds Animation Play

What are gases? Animation Play