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          Science and everyday life
        
        
          What was the first satellite in space?
        
        
          
            Science and technology
          
        
        
          Cities at night are bright
        
        
          places, lit up by office,
        
        
          house, and street lights.
        
        
          Science is not just used by
        
        
          experts working in laboratories.
        
        
          It is part of all our lives. From
        
        
          brushing your teeth to setting
        
        
          your alarm, science is with you
        
        
          all day, every day.
        
        
          
            Electricity
          
        
        
          Electricity lights up the
        
        
          world and gives us the
        
        
          energy to cook, travel,
        
        
          work, and play.
        
        
          
            Teflon pan
          
        
        
          
            Teflon
          
        
        
          Invented in 1938, Teflon
        
        
          was used in space suits.
        
        
          In everyday life it stops
        
        
          stuff sticking
        
        
          to hot
        
        
          surfaces.
        
        
          
            Iron
          
        
        
          
            Plastic
          
        
        
          
            building
          
        
        
          
            blocks
          
        
        
          
            Plastic
          
        
        
          
            medicine
          
        
        
          
            bottles
          
        
        
          
            Plastic fantastic
          
        
        
          Look around you and you will see
        
        
          dozens of things made of plastic.
        
        
          From containers to toys,
        
        
          plastic is a versatile
        
        
          and hard-wearing
        
        
          material. Some
        
        
          plastics can
        
        
          now be recycled.