The Seeing DNA experiment consisted of extracting DNA strands from an onion. This was a longer experiment that required chopping onions, mixing in dish detergent, straining and removing solids from liquids, removing foam, adding denatured alcohol, and waiting for the DNA to magically appear. : ) The kids were patient, as the whole process was long, with waiting periods in between. The end result was that we were able to see the DNA strands under a microscope and by golly they really do look spirally and twisted. : ) In this photo, Nevan and Silvio and a friend are straining the liquid from the onion solids into a bowl, and it is in this liquid that the DNA can be found. We all look forward to the next Science Day!
Tuesday, April 7, 2009
Science Club Fridays: Seeing DNA and Making Butter
The Seeing DNA experiment consisted of extracting DNA strands from an onion. This was a longer experiment that required chopping onions, mixing in dish detergent, straining and removing solids from liquids, removing foam, adding denatured alcohol, and waiting for the DNA to magically appear. : ) The kids were patient, as the whole process was long, with waiting periods in between. The end result was that we were able to see the DNA strands under a microscope and by golly they really do look spirally and twisted. : ) In this photo, Nevan and Silvio and a friend are straining the liquid from the onion solids into a bowl, and it is in this liquid that the DNA can be found. We all look forward to the next Science Day!
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