General structure of an amino acid Illustration Play

Geometry of amino acid units in proteins Animation Play

Haloalkanes (2) Student activity Play

Halogens as disinfectants Student activity Play

Heating curve of ethanoic acid Animation Play

How acid affects chalk Simulation Play

How acids react with bases Student activity Play

How acids react with carbonates Student activity Play

How acids react with metals Student activity Play

How catalysts work? Student activity Play

How do buffers work? Student activity Play

How do indicators work? Whiteboard exercise Play

How do indicators work? Student activity Play

How metals react with acids Student activity Play

How plants can split rocks Animation Play

How temperature affects reaction rates Student activity Play

How the concentration of a reactant affects reaction rate Animation Play

How the concentration of a reactant affects reaction rate Student activity Play

How to calculate pH of strong acid solutions? Animation Play

How to establish the formulae of salts Student activity Play

How to measure the pH? Animation Play

How to write the numbers of molecules and numbers of atoms in a molecule Student activity Play

Hydrochloric acid Student activity Play

Hydrochloric acid Slideshow Play

Hydrochloric acid Whiteboard exercise Play