the compound microscope vocabulary

Mr. Keleher • East Islip High School • Living Environment NAME: ______________________________________________________________ Period: ______________ Date: ___________________ THE COMPOUND MICROSCOPE VOCABULARY 1. Arm: supports the body tube in place over the stage 2. Base: supports all other parts of the microscope 3. Body Tube: holds the eyepiece and lenses in position 4. Coarse Adjustment: the large knob which moves the body tube to produce large changes in focus 5. Diaphragm: controls the amount of light that passes through sample 6. Eyepiece/ Ocular: what you look through (Magnifies 10×) 7. Fine Adjustment: the small knob which moves the body tube to produce small changes in focus 8. Lamp/ Mirror: shines light through the sample 9. Nosepiece: holds the objective lenses and allows you to change lenses 10. Objective Lenses: lenses with different magnifications (4×, 10×, 40×) 11. Stage Clips: holds slides in place 12. Stage: the flat surface on which the slides are placed 13. Stain: chemical sometimes applied to specimens to make them more visible Calculating total magnification: Compound microscopes use two lenses; the one at the top that you look through (ocular) and the smaller lenses by the slide (the objectives). Most compound microscopes have several different power objectives on the rotating nosepiece. To get total magnification you multiple the ocular (10x) by the objective you are using. For example: ocular (10X) and a high power lens (40x) gives you a total magnification of 400x 10 x 40 = 400 (total magnification)

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Mr. Keleher • East Islip High School • Living Environment NAME: ______________________________________________________________ Period: ______________ Date: ___________________

THE COMPOUND MICROSCOPE VOCABULARY

1. Arm: supports the body tube in place over the stage

2. Base: supports all other parts of the microscope

3. Body Tube: holds the eyepiece and lenses in position

4. Coarse Adjustment: the large knob which moves the body tube to produce large

changes in focus

5. Diaphragm: controls the amount of light that passes through sample

6. Eyepiece/ Ocular: what you look through (Magnifies 10×)

7. Fine Adjustment: the small knob which moves the body tube to produce small

changes in focus

8. Lamp/ Mirror: shines light through the sample

9. Nosepiece: holds the objective lenses and allows you to change lenses

10. Objective Lenses: lenses with different magnifications (4×, 10×, 40×)

11. Stage Clips: holds slides in place

12. Stage: the flat surface on which the slides are placed

13. Stain: chemical sometimes applied to specimens to make them more visible Calculating total magnification: Compound microscopes use two lenses; the one at the top that you look through (ocular) and the smaller lenses by the slide (the objectives). Most compound microscopes have several different power objectives on the rotating nosepiece. To get total magnification you multiple the ocular (10x) by the objective you are using. For example: ocular (10X) and a high power lens (40x) gives you a total magnification of 400x

10 x 40 = 400 (total magnification)

Page 2: THE COMPOUND MICROSCOPE VOCABULARY

Mr. Keleher • East Islip High School • Living Environment

THE COMPOUND MICROSCOPE DIAGRAM Below is a diagram of a compound microscope. Use the word box below to fill in the blanks. Use the same word bank to do the crossword puzzle on the next page. Mirror (or lamp) Body tube Nosepiece (rotating) Base Low power objective Ocular (or eyepiece) Clip (stage clip) Fine adjustment Diaphragm Stage Coarse adjustment High power objective Arm Stain (crossword only)