Homologous series of alkenes Student activity Play

How a catalyst works (1) Student activity Play

How acids react with bases Student activity Play

How are electrons assigned to the subshells? Animation 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 indicators work? 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

How metals react with water Student activity Play

How temperature affects reaction rates Student activity Play

How to calculate pH of strong acid solutions? Animation Play

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

How to experiment with gases Student activity Play

How to handle gases in a chemistry laboratory Student activity Play