Ability to react with metal salts 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

Abundance of the elements in the crust and in the whole Earth Animation Play

Acids and alkalis Class activity Play

Acid–base reactions in a non-aqueous medium Animation Play

Across the periodic table Student activity Play

Additional information contained in chemical equations Student activity Play

Alkali metals Student activity Play

Application of iodine Slideshow Play

Application of sodium hydroxide Slideshow Play

Applications of sodium hydroxide Illustration Play

Arranging metals according to increasing reactivity Student activity Play

Arranging metals according to increasing reactivity Animation Play

Atomic radii Student activity Play

Atomic radii of alkali metals Animation Play

Atomic radii of alkali metals Slideshow Play

Atomic radii of the s-block elements Student activity Play

Atomic radius Student activity Play

Avogadro's number (1) Student activity Play

Balancing chemical equations. Part 2 Student activity Play

Bases (1) Student activity Play

Bases (2) Student activity Play

Boiling point Student activity Play