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Students have had an exciting week while learning about DNA.  Earlier in the week, students constructed a piece of the DNA chain.  I had quite a few students help me after school to combine all classes together to form a long 7th grade DNA chain.  Later in the week students partook in a DNA isolation and extraction lab where they were able to look at actual DNA.  Students completed this lab with split peas, though really could do this with anything that is or was living.  We broke the cell wall, nucleus and other proteins away from the DNA in order to see it clearly in the test tubes.  I was really impressed with how well the students did in this lab.  They were really able to see quite a bit of DNA.  We finished off the week reading about genetics and heredity.  We will be exploring the work of Gregor Mendel and his pea plants and discuss what this has to do with us, early next week.