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I thought a fun science experiment for us to do was to make rock candy.  I myself had never made it so it was all new to me too.  It was pretty neat watching the sugar on the stick getting bigger and bigger.  This experiment also taught Sofia patience.


We started on a Monday and then we took the stick of sugar out of the sugar water the following Monday.


It was pretty big, but sugar had collected on top and on bottom so a lot of the sugar crystal rubbed off when she pulled it out of the glass.


We observed it and then came the really fun part…


To make rock candy all you need is a tall glass, skewer, clothes pin, water, and sugar.

  1. You want you skewer to hang 1 inch above the bottom of the glass so first put it in the glass and use the clothes pin to hold the skewer in place (you can check out the top photo to see how we had the skewer and clothes pin).  Take the skewer out of the glass.
  2. Pour 1 cup of water in a pot and get it to boiling.
  3. Pour 1/4 cup of sugar into the water and stir until it is dissolved.
  4. Now keep adding 1/4 cup of sugar stirring until dissolved after each time.  The more sugar you add the longer it takes to dissolve.  You will add about 2-3 cups of sugar.  Keep adding sugar until the sugar wont dissolves anymore.
  5. Once the sugar water is done pour it into your tall glass and place the skewer back into the glass.  Make sure it is still 1 inch from the bottom and it is not touching the sides.
  6. Allow it to cool and then leave it alone.  It will take 3-7 days for the rock candy to get done.
  7. You can add food coloring to it too.  We obviously did.  Sofia wanted pink so we added two drops of red.  You will add the food coloring right before you put in the skewer.

It is a pretty easy science experiment to do.