Experiments with a Lemon - page 4
      
              
          B
        
        
          l
        
        
          o
        
        
          w
        
        
          U
        
        
          p
        
        
          a
        
        
          B
        
        
          a
        
        
          l
        
        
          l
        
        
          o
        
        
          o
        
        
          n
        
        
          You will need:
        
        
          A balloon
        
        
          A lemon
        
        
          A knife
        
        
          A lemon juicer
        
        
          A funnel
        
        
          1 teaspoon of baking
        
        
          soda
        
        
          A jug
        
        
          How can you
        
        
          blow up a balloon
        
        
          without blowing or
        
        
          pumping air into it?
        
        
          
            By using
          
        
        
          
            lemon juice!
          
        
        
          1
        
        
          
            Cut the lemon
          
        
        
          
            in half and
          
        
        
          
            squeeze out
          
        
        
          
            the juice.
          
        
        
          3
        
        
          
            Add the baking
          
        
        
          
            soda and then
          
        
        
          
            quickly take out
          
        
        
          
            the funnel and
          
        
        
          
            knot the end
          
        
        
          
            of the balloon.
          
        
        
          
            Now watch
          
        
        
          
            what happens.
          
        
        
          4
        
        
          2
        
        
          
            Pour
          
        
        
          
            in the
          
        
        
          
            lemon
          
        
        
          
            juice.
          
        
        
          
            Stretch the end of
          
        
        
          
            the balloon over
          
        
        
          
            the end of the
          
        
        
          
            funnel.
          
        
        
          12