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Tuesday, 29 May 2018

Energy effeciency


Complete the sentences.
  • Solar panels work by… the sun hitting the panels then you get energy.
  • Solar panels use.. The sun for energy.
  • Off-grid means..making your own power like solar power.
  • It is free because.. We didn't make it and we can`t touch the sun  .
  • One downside to using solar panels is… it costs $5,990 to install
  • Electric cars work by… batteries because it's not a normal car normal cars run on gas and electric cars run on electric.
  • Changing your light bulbs can… change the lighting or change the dead light bulb from previously.
  • Charging your electric car works by… batteries



Summarise the 3 big ideas.
  1. Light bulbs - Light bulbs is like the sun but uses energy and it gives out light and heat and if we use old bulbs then we are spending more money and if we use new  ones we spend less
  2. Solar panels - gives us free energy because the sun gives us energy to the panel and it connects it to our light and it always does not have to be on the roof it can be on the side of the roof.
  3. Electric cars - are powered by batteries and if we keep on using normal cars then the gas will go into the air and cause air pollution and that's bad for the environment.


Electric cars

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