Tuesday, November 9, 2010

Microscopes


Today in Mr.Finley's Science class (Period 4) we got in deeper detail with MICROSCOPES! When we came in to class today we took out our microscope homework so Mr.Finley could check if we did it. Then Mr.Finley asked us to rate ourselves on a scale from 1-10 (with 1 being bad and 10 being the best) of the confidence you had in your answers for homework. Then we had to also rate ourselves on our skills on microscopes.
After we rated ourselves Mr.Finley said "For those of you who rated yourself 6 or lower you are going to do a virtual lab on microscopes. But for the others you are going to use the real microscopes and present your knowledge to the class on Thursday or Friday."
So, then the beginners did a Microscope simulation on the computer where they went over the different parts of the microscope and learned how to use them. After that, they answered questions on what they learned, but what ever they didn't finish they must do for homework!(DUE THURSDAY!)
For the more advanced group they actually worked with microscopes! The people in that group made a DRY SLIDE by taking a slide and cut a tiny piece of paper out with writing/print on it, from the recycling and put it on the SLIDE. Then they took some LENS PAPER and cleaned off the COVER LENS so that they could see clearer through the cover lens and also, so there were no smudges. After they cleaned the cover lens they put the cover lens on top of the piece of paper with writing. But, they had to be very careful and only grab the sides of the cover lens and of the slide, so they wouldn't get any finger prints or smudges which would ruin the observations. What made this SLIDE and DRY SLIDE was that after they put their piece of paper down, they didn't put any water or liquid to see the thing your observing better and to keep the cover lens on the slide and prevent it from slipping off. They had NO liquid and made it a dry slide! So then, the group made their DRY SLIDES and put them under the microscopes and observed with first the SMALLER MAGNIFICATION LENS and then the BIGGER MAGNIFICATION LENS and see the difference. Also they adjusted the diaphragm light source to get more light, or less light shining from under the slide. That group observed, took notes and drew pictures of what they saw through the microscopes

CL<3

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