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Lab Group Projects

Lab Group Projects. Timeline. Today : Turn in preliminary question for your project Monday after Spring Break (3/24) : I will give them back with comments

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Lab Group Projects

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  1. Lab Group Projects

  2. Timeline • Today: Turn in preliminary question for your project • Monday after Spring Break (3/24): I will give them back with comments • Thursday (3/27): Talk about how to devise a hypothesis, come up with a materials list, to-do list for the experiment, making out a schedule for the project, and go over lab report-meeting with me during the lab time, we will have a schedule to sign up • Friday (4/4): Hypothesis due, Materials list due, and schedule due- “Outline” due • Thursday (4/10): Round 1 of experiments. You will be keeping a lab notebook as usual. You come up with the title, purpose, methods, and results.

  3. Things to Remember… • This is group work but everyone pulls their weight and you will be evaluating one another! • You turn in separate notebooks with your OWN conclusions • You turn in separate reports with your OWN conclusions • IF I SEE ANYONE WRITING ANYTHING SIMILIARLY, YOU GET A “0”

  4. Potential Questions 1. How many bacteria are in ________ (a kitchen sponge? your washed hand? lunch meat? mascara? lettuce? etc.) 2. Comparing the number of bacteria in a variety of water samples (drinking water/James River/toilet water). 3. Comparing the survival of a pathogenic indicator organism (such as E. coli) on wood vs. plastic cutting boards. The FDA requires plastic cutting boards in food preparation, arguing that they are easier to clean. However, recent reports suggest that bacteria disappear from wood surfaces much faster. * 4. Examining microbiology in the home/school/dorm/kitchen etc. Where are bacteria found in greatest abundance? How contaminated is a sponge that is used several times a day to clean food? 5. Examining the variation of numbers of bacteria in different habitats. Examining the abundance of bacteria on the same person (swabbing hands, armpits, toes, etc.). 6. Examining bacterial variation over time. But how soon after washing your hands do bacterial numbers rise, and to what extent? Bacterial numbers in old (expired) vs. fresh eggs? 7. Determining the antibiotic resistance profile of bacteria found on your cell phone/iPad/iPod/computer etc.

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