Halogen lights Illustration Play

Hazards Slideshow Play

Heat of combustion as a function of alkane constitution Illustration Play

Heat pollution Whiteboard exercise Play

Heating of mercury(II) oxide Animation Play

Heterogeneous catalysis Student activity Play

Heterogeneous catalysis Whiteboard exercise Play

Homeostasis – stability of the internal environment Slideshow Play

Homeostasis – the stability of the internal environment Student activity Play

Homogeneous catalysis Student activity Play

How a catalyst works (1) Student activity Play

How can we check whether a given substance is an element or a compound? Animation Play

How can we prove that air contains oxygen? Animation Play

How did the atmosphere form? Student activity Play

How do metals react with oxygen? Slideshow Play

How do plants use food? Simulation Play

How do tiny marine plants influence the climate on the Earth? Animation Play

How does an electric current decompose water? Student activity Play

How does glucose form in plants? Animation Play

How esters are formed? Animation Play

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