Preparing and Examining Microscope Slides
Proper slide preparation is essential for viewing specimens clearly under a microscope. For a dry mount, place a thin slice of your specimen on a slide and cover with a cover slip. This works for many solid samples where light can pass through.
For living organisms, a wet mount is better - place a drop of water on the slide before adding your specimen. When adding the cover slip, tilt it at an angle to avoid trapping air bubbles. You can enhance visibility by adding a stain to one edge of the cover slip and drawing it across using a paper towel.
Different specimens require different techniques. Squash slides work well for soft samples - prepare a wet mount and gently press down with lens tissue. Smear slides are ideal for viewing blood cells - use the edge of one slide to smear a thin layer across another slide.
Pro tip: When using the light microscope, always start with the lowest magnification objective lens and focus using the coarse knob first, then fine-tune with the fine focusing knob. This prevents damaging the objective lens and your specimen.
