Thursday 30 July 2015

My Wonder For The Week


Why are lemons sour?
If you have already had straight lemon you will know it can be sour. This is because lemons have citric acid in them, which is acid found in lots of fruits and vegetables. We know it is sour because our taste buds gather info about what we ate and tells our brain that it is sweet, salty, bitter, or sour.


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