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chapter 1 section 4
tools and techniques
| Term | Definition |
|---|---|
| compound light microscope | Light passes through specimen and then focused by glass lens system |
| eyepiece | - lens you look into for viewing magnifies the image 10x |
| stage | surface for the slide |
| objective lens | enlarges the image of the specimen |
| light source | is a light bulb that provides light for viewing the image. |
| magnification | is the increase of an objects apparent size |
| nosepiece | allows you to change the correct distance between the eye piece and the objective lens |
| resolution | the power to show details clearly in an image |
| scanning electron microscope | Beam of electrons passes over surface electrons projected onto florescent screen or photo plate |
| transmission electron microscope | Bean of electrons passes through a very thinly sliced specimen; magnets used to focus image onto f-screen |
| metric system | a decimal system and thus is based on powers of 10 |
| base unit | describe length, mass, time, and other quantities in powers of 10 |