Friday, November 12, 2010

11/12/10 Noah Kudman

Today, we talked about the presentation that the expert group made about microscopes. The cover slip is what is used to flatten the sample on a slide. Dry mount slides are used to look at non-liquid samples. if you can't see your sample, try fiddling with the diaphragm. NEVER TOUCH THE SLIDE. A rule to remember is if the body tube is higher than your pinky is ,which is the lowest place the body tube can be, you can't see anything.




A couple days we ago, we talked about how multi-cellular organisms are made of systems, which are made of organs, which are made of cellular tissues, which are made of cells, etc. We decided to take cheek cells because they're large and easily accesible. Mr. Finley took a toothpick and rubbed it on his cheek, lightly rubbed it on a slide, and then threw the toothpick away. He put methalene blue, which is a dye, and put a drop on the cells. He then put a cover slip on it and wiped around the cover slip, and the cover slip stuck to the slide.




He put the slide onto a microscope which was connected to the projector and it was projected onto the Smart Board. We discovered that the white was air and NOT cells. Then, we did the experiment in pairs. We found small blue cells that looked like little blue specks.

1 comment:

  1. very well made 11/10 :) good job noah kidmon

    ReplyDelete