A balanced diet Slideshow Play

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 spectra 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

Active site Animation Play

Addition of elements to alkenes Student activity Play

Aesthetic organic molecules Animation Play

Amides and nitriles Student activity Play

Ammine complexes with non-octahedral geometry Animation Play

Analysis of the energy profile for chemical reactions Whiteboard exercise Play

Area of more complex region on the plane Whiteboard exercise Play

Area of more complex region on the plane Whiteboard exercise Play

Areas of more complex regions on the plane Student activity Play

Arterioles and capillaries Student activity Play