Energy released by combustion of fossil fuels Chart Play

Energy transfer during chemical reactions Student activity Play

Enthalpy of combustion of ethanol Animation Play

Environmental factors and their effects on seed germination Animation Play

Environmental factors necessary for germination Student activity Play

Enzymes Student activity Play

Equilibrium constant expression Student activity Play

Equilibrium constants for the reaction of nitrogen with oxygen Animation Play

Erythrocyte – a cell specialized for oxygen transport Slideshow Play

Erythrocytes – cells specialized in the transport of oxygen Student activity Play

Erythrocytes – the transport of oxygen Slideshow Play

Establishing the formula of a compound Animation Play

Esters Student activity Play

Ethanol Illustration Play

Eutrophication of water Student activity Play

Events causing changes in the concentration of oxygen in the Earth's atmosphere Whiteboard exercise Play

Evolution of the Earth's atmosphere Animation Play

Example of simple molecular solid: carbon dioxide Simulation Play

Examples of endothermic reactions Student activity Play

Examples of habitats Slideshow Play

Examples of reagents, reactants and products Animation Play

Examples of transparent materials Slideshow Play

Exchange mechanism in capillaries Animation Play

Exchange of food, oxygen and waste Animation Play

Excretion Student activity Play