Preparing A Slide - Science - 2018

Preparing A Slide ( Microscope )

< - Plant Cell Zoomed In ( Onion )

Equipment:

Stain ( Iodine ), Slide, Tweezers, Coverslip, Specimen.

Making A Slide:

1. Place your specimen in the middle of a clean slide. Ensure that the specimen is laying flat and not folded.

2. Add 2 - 3 drops of the stain solution. Plant cells are commonly stained with iodine, whereas animals cells are commonly stained with methylene blue. Both of these solutions the nucleus of each cell ( and your fingers and clothes, so be careful ).

3. Holding the coverslip by its edges in your left hand, maneuver it so that the bottom edge of the coverslip makes contact with both the slide and the edge of the stain solution. With your right hand, support the top edge of the coverslip with a pair of scissors.

4. Gently lower the coverslip with the tweezers, ensuring that no air bubbles are trapped under the coverslip.

5. Place your slide on the microscope stage and examine it under low-power magnification.

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Credit: http://danielkimhornbysciencething.blogspot.com/ ( Picture Of The Microscope )
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Results ( Plant Cell & Animal Cell): 

When my group zoomed into the onion membrane we saw that the cell was in a shape similar to a honeycomb. This happened because plant cells have cell walls which give it that particular shape, animal cells don't that's why they are shaped irregularly. 

This time we tested on human saliva. My group and I zoomed in but all we saw were specs of black dots, later we realised that it was an animal cell. It was shaped weirdly which made it hard to discover it was an animal cell. An animal cell is shaped like that because it has no cell wall.