How excretion occurs Animation Play

How habitats vary Student activity Play

How humans depend on the natural environment Student activity Play

How is the greenhouse effect brought about? Animation Play

How metals react with oxygen Student activity Play

How metals react with water Student activity Play

How temperature affects reaction rates Student activity Play

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

How the concentration of a reactant affects reaction rate Animation Play

How to calculate pH of strong acid solutions? Animation Play

How to calculate the pH of strong base solutions? Animation Play

How to handle gases in a chemistry laboratory Student activity Play

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

Human dependency on the natural environment Slideshow Play

Hydrogen atoms on oxygen or nitrogen are usually not coupled to their neighbours Animation Play

Hydrogen bonding Student activity Play

Hydrogen bonding and boiling points Student activity Play

Hydrogen bonds in ammonia and water molecules Animation Play

Hydrogenation of benzene Student activity Play

Hydrogenation of benzene Whiteboard exercise Play

Hydroxide anion Animation Play

Hydroxide ions concentration calculations Animation Play

Hypotonic; hypertonic and isotonic solutions Animation Play

Identifying oxidation–reduction reactions Student activity Play

Increasing the concentrations of reacting substances Animation Play