biofuel

• biofuel is

  renewable
• Biomass uses waste from plants or animals that can be converted to energy. 

  
• Examples of biomass are plant matter, food waste and human and animal waste.

  
• Biomass can be gassy and smelly and when we burn biomass it gives off smoke.

  
• we can make biomass energy by


  burning

  rotting

  growing crops as a biofuel
• All the energy in biomass comes from the same original source

  sun
• Biomass is made from

   living things.

  
• All living things grow and 


  gain energy from the Sun.

  
• Plants gain energy directly from 


  sunlight.

  
•  Animals gain energy from


   eating plants.

  
• They all store this energy as 

  chemical energy

  
• Biomass energy releases chemical energy so it can be changed into useable

  heat energy, kinetic energy or electrical energy.