wednesday and thursday of this week we took some time to look at different characteristics of life. I had you all swab different areas and plate them on agar dishes or transfer them to a liquid medium to see if we could see bacterial growth and reproduction. We also looked at our little tube of organisms and tested to see if they could metabolize sugar and water. We found that the lil buggers were indeed able to metabolize it and in the mean time were able to collect some of their waste in baloons!!!
Thursday i also gave you a chance to look under the microscopes at a human cheek cell (one of your own peers in fact!), some bacteria, kidney tissue and heart tissue. I like this activity as a nice intro to this class so that you understand how small of a scale we will be looking at this year.
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| E.coli |
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| cheek cells (3) |
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| Heart Cells |
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| Kidney Cells |
I also gave you a chance to look a little more at the sheep brain. Again, the reason I am letting you see this is to show you what we are learning on a LARGE scale (the organ scale) but that everything that actually happens is going on at the cellular level!!
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