Tuesday, December 18, 2019
09:00 -11:00, 120 min. -
Biology:
The Microscope -
GT completed an exam on organelles and cell theory. After checking for errors, we discussed the results of the test. GT was given a diagram of a compound microscope, and was challenged to find and identify the parts and functions on a working machine. GT was challenged to cut out the letter ‘e’ from some text in a newspaper. He then mounted his ‘e’ on a slide, using a wet mount. He then used the microscope to examine the letter under different strengths of magnification. He investigated the different manners by which he could alter the light and exposure of his slide. GT determined the magnification of each view, by remembering to multiply the objective strength by the number on the eyepiece. He was also challenged to describe what he sees under the different objectives. We switched out eyepieces to observe how this changed the view. He then examined a slide of a tissue from a twig of a lemon tree. We found what organelles could be seen through the different objectives of the microscope. He also explored a variety of other prepared slides, (including different plant and animal cells, and parts of a mosquito) all in practice on how to use the binocular compound light microscope.