Monday, May 3, 2010

 

Mon-Day 1

Bio -  Here is an interesting website that you can use to trace your genetic ancestry back to various countries as you go back in time: https://genographic.nationalgeographic.com/genographic/lan/en/atlas.html

Give it a try.
We discussed the observations of Charles Darwin that led him to his proposed Theory of Evolution via Natural Selection. We went through his proposed mechanism of speciation of the various finches from the mainland of South America to the various islands of the Galapagos; each island had a different environment that had different selecting agents that favored/selected for different phenotypes/traits. Eventually (100000 years) each island had its own unique species of finch that had evolved from the common ancestral species of finch.

AP Chem - we finished nuclear by discussing fusion (binding energy, Einstein's equation) and fission. We focused on nuclear decay kinetics, which are always FIRST ORDER and, UNLIKE chemical kinetics, nuclear decay kinetics are INDEPENDENT OF TEMPERATURE CHANGES!

We introduced the first of our review AP exams.
HERE IS HOW THIS WORKS:
Look at the exam the night/day before class; the exam file will be posted on Blackboard by 6PM the night before.
Do whatever problems you can. For any problems give you trouble, ask about them in class and we will solve them together and review the concept.
The exam handed out in class today is on Blackboard; ALSO, the PART I/MULTIPLE CHOICE exam that we will review during the second of our two periods, is on Blackboard - download it, print it, and be ready with questions. Part I hw is TIME-CONSUMING because you must SHOW YOUR WORK/REASONING for each question. You will not be given credit for a mere correct answer. Also, I want to see test-taking skills on the hw- underline keywords and data.



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