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Tuesday 20 October 2015

energy for kids


Energy smart inventions 
 
All over the world, scientists are finding new ways to save energy – and make energy. Sometimes the scientists are kids just like you! The most of the famous inventions are fuel cells, electric cars, microturbines, production of biohuel and etc... 
         
 
Renewable energy sources 
Renewable energy sources include all fuel types and energy carriers, different from the fossil ones. Renewable energy sources include solar energy (which comes from the sun and can be turned into electricity and heat), wind energy, geothermal energy (from inside the earth), biomass from plants, and hydropower from water are also renewable energy sources.
Solar energy The sun has produced energy for billions of years. Solar energy is the solar radiation that reaches the earth... 
 
Wind energy Wind is air in motion. It is produced by the uneven heating of the earth’s surface by the sun. Since the earth’s surface is made of ... 
 
Biomass energy Biomass is organic material which has stored sunlight in the form of chemical energy. Biomass fuels include wood ... 
  
Hydro energy Of the renewable energy sources that generate electricity, hydropower is the most often used ...  
 
Geothermal energy Geothermal energy can be used as an efficient heat source in small end-use applications such as greenhouses, but the consumers ...  
 
Ocean energy Tides are caused by thegravitational pull of the moon and sun, and the rotation of the earth. Near shore, water levels can vary ... 
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