Across
3. concentrates the light on the specimen
5. backbone of the microscope
7. eyepiece
12. 2 ocular lenses
14. weakest power; used to locate the object on the slide
15. holds the slides
16. Ability to maintain focus when the objective lens is changed
17. used to perfect focus
20. allows the selection of different lens
23. lens with higher power than the scanning lens
Down
1. 2 magnifying lens
2. hold the slides in place.
3. used to locate an object
4. found above the stage
6. moves the slide on the stage
8. controls the aperture opening and that affects how much light is let in and increases contrast
9. is the size of the area that the lens views
10. = the power of the objective lens x the power of the ocular lens
11. bottom of the microscope
13. The capacity of the lens to deliver a clear image
18. Shines light on the slide
19. lens used to located very small objects using oil
21. adjusts the brightness of the slide
22. the distance from the bottom of the objective lens to the specimen