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Microscope
Parts of the Microscope, Types of Microscopes, Magnification
| Question | Answer |
|---|---|
| Where you look through to see the image of your specimen. Magnifies the specimen 10x actual size. | Ocular Lens (Eyepiece) |
| The long tube that supports the eyepiece and connects it to the objectives. | Body tube |
| The rotating part of the microscope at the bottom of the body tube; it holds the objectives. | Nosepiece |
| Depending on he microscope, you may have 2,3 or more objectives attached to the nosepiece; the vary in length (the shortest is the lowest power or magnification; the longest is the highest power or magnification). | Objective Lenses |
| Part of the microscope that you carry the microscope with; connects the head and base of the microscope. | Arm |
| Large, round knob on the side of the microscope used for "rough" focusing of the specimen; it may move either the stage or the upper part of the microscope. Location may vary depending on microscope-it may be on the bottom of the arm or on the top | Coarse Adjustment Knob |
| small, round knob on the side of the microscope used to fine-tune the focus of your specimen after using the coarse adjustment knob. As with the Coarse Adjustment Knob, location may vary depending on the microscope. | Fine Adjustment Knob |
| large, flat area under the objectives; it has a hole in it (see aperture) that allows light through; the specimen/slide is placed on the stage for viewing | Stage |
| clips on the top of the stage which hold the slide in place. | Stage Clips |
| the hole in the stage that concentrates light through the specimen for better viewing. | Aperture |
| controls the amount of light going through the aperture; may be adjusted. | Diaphragm |
| source of light usually found near the bast of the microscope; used to direct light upward through the microscope. The light source makes the specimen easier to see. | Light or Mirror |
| The model found in most schools, use compound lenses and light to magnify objects. The lenses bend or refract the light, which makes the object beneath them appear closer. | Light microscopes |
| this microscope allows for binocular (two eyes) viewing of larger specimens. | Stereoscope |
| allow scientist to view a universt too small to be seen with a light microscope. SEMs do not use light waves; they use electrons (negatively charged particels) to magnify objects up to two million times | Scanning Electron Microscope |
| also uses electrons, but instead of scanning the surface (as with SEM's)electrons are passed through very thin specimens. | Transmission Electron Microscope |
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