1. Eye Piece (ocular)
Coarse Focus
Fine Focus
Arm
Stage Clips
Pivot
Point
Base
Body Tube
Revolving Nose Piece
Low Power Objective
High Power Objective
Stage
Diaphragm
Mirror 1

2. 1) Eye Piece (ocular) –
the lens that you look through
2) Body Tube –
the tube that supports the eyepiece
2

3. 3) Revolving Nosepiecethe rotating device that holds and
changes the objectives (lenses).
Revolving
AperatureOpening in the
stabe to allow light
from mirror or
light to pass
3

4. 4) Low Power
Objective –
 magnification lens
with the lowest power
5) High Power
Objective –
 magnification lens
with the highest
power
6) Stage Clips –
clips that keep the slide or specimen from moving
4
on the stage

5. 7) Stage –
holds the specimen
5

6. 8) Diaphragmcontrols the amount of light entering through
the aperature to the objectivefrom the bottom
6

7. 9) Pivot Pointpart that allows
you to tip the
ocular toward
you
Pivot
Point
Base
Mirror
10) Basesupports the microscope
11) Mirror
reflects (bends) the light upward onto the slide
7

8. 12) Fine Focus Adjustment –
moves the body tube in small increments
13) Coarse Focus Adjustmentmoves the body
tube in large
increments
14) Arm –
attaches the
eyepiece and the
body tube to the
base
8

9. 9

10. Calculate Total Magnification
Total Magnification =
ocular power x objective lens power using
Ocular power is generally 10X, meaning
it has a magnification or power of 10X
10

11. 11

12. Elodea
40 x
Elodea
400x
Elodea
100x
12

13. The end
13

14. STOP:
TEACHER NOTES &
ADDITIONAL PICS
14

15. 15

16. 16