The chemistry students continued with 2 things today: preparation for the Unit 4 Exam make up, which is during Achievement today, and the continuation of the Acid and Base Lab. Actually, most students completed the experimentation section of the lab and are now working on post-lab questions.
The AP Biology students worked on the data collection part of the Gel Electrophoresis Lab today. Something weird happened though. Did you see the pictures of the stained gel from yesterday? Looked great, didn't it? Well, overnight the fragments of DNA disappeared from the gels, probably from a bleaching effect that can occur by using tap water (and the chlorine within it) to rinse the gels. But we still got usable data from a couple of the gels.