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• Resource - Energy resources activity pack: A PDF explaining how to build a biogas generator,hydroelectric power plant, anemometer, wind turbine, a ‘Cross-Wind Savonius’, a solar cooker and a solar water heater. There are activities
  
  
• Video - Biogas:how it works: Biogas typically refers to a gas produced by the biological breakdown of organic matter in the absence of oxygen. Comprised primarily of methane and carbon dioxide, biogas originates from biogenic mat