There are several different microscopic slides available to use for observations.
Microscope glass is used to hold samples securely in place under a microscope. Depending on the type of scientific work, the slides may have different indentations, grooves and materials in them. Research the type of slides available for purchase prior to your experiments. Doing so ensures that you have the correct slide that handles the needs of your observation.
Generic Slide
Standard microscope slides are typically 3 inches by 1 inches, and one millimeter thick. Common glass is used to produce the slides, with polished edges. Certain exceptions are made in the slide's material, depending on the conditions needed to observe a sample. For example, fused quartz slides are used when viewing a sample in ultraviolet transparency. The sample on the slide is usually held together with a transparent cover glass that goes directly on top of the specimen.
Concavity Slide
A concavity slide is used by scientists in an array of different fields including microbiology, chemistry and oceanography. It contains at least one small, curved depression in the otherwise flat slide. The slide is specifically designed to hold liquids and tissue cultures.
Geological Slide
Geological slides are created specifically to study the physical matter of the Earth. The slides assist in the microscopic analysis of particles such as dirt, microfossils and plants. Within the slide is a 40-square grid composed from vertical and horizontal lines. The grid is indented to hold specimens in place. The slide also contains a glass cover that fits on its top.
Graticule Slide
Graticule slides are marked with vertical and horizontal grid lines. These lines allow observers to guess the size of objects under the microscope. The horizontal and vertical lines are perpendicular to each other, creating squares. Most squares within the slide have a smaller grid embedded in them, for increased accuracy during sample observation.
Tags: glass used, slides available, under microscope, vertical horizontal
