Absorption and waste Class activity Play

Absorption of light by transition metal ions Animation Play

Absorption of the products of carbohydrate digestion Animation Play

Absorption of the products of protein digestion Animation Play

Absorption of the products of protein; carbohydrate and lipid digestion Student activity Play

Absorption spectrum of Co(II) ions Illustration Play

Absorption spectrum of Co(II) ions Whiteboard exercise Play

Absorption spectrum of Ti(III) ions Illustration Play

Acid-base reactions of metal ions Class activity Play

Acid-base reactions of metal ions Whiteboard presentation Play

Acidic properties of hydrogen halides Student activity Play

Acidity reaction (hydrolysis) of metal ions Student activity Play

Acidity reaction (hydrolysis) of metal ions Whiteboard exercise Play

Adaptation of birds for flight Slideshow Play

Adaptations of animals to low temperatures Slideshow Play

Adaptations of birds for flight Student activity Play

Africa – the cradle of humankind? Whiteboard exercise Play

Africa – the cradle of humankind? Student activity Play

Animal behaviour as a form of adaptation to the environment Whiteboard presentation Play

Animal behaviour as a form of adaptation to the environment Class activity Play

Animal migrations Slideshow Play

Arterioles and capillaries Student activity Play

Behaviour of halide ions in the presence of silver nitrate(V) Animation Play

Bonds in polyatomic ions Animation Play

Calcium ions enter the synaptic knob Animation Play