1

Eye Piece (ocular)

Body Tube

Revolving Nose Piece

Low Power Objective

Coarse Focus

Fine Focus

Arm

Stage Clips

Pivot Point

Base

High Power Objective

Stage

DiaphragmMirror

2

1) Eye Piece (ocular) – the lens that you look

through

the tube that supports the eyepiece

2) Body Tube –

3

Revolving

3) Revolving Nosepiece-the rotating device that holds and changes the objectives (lenses).Aperature-Opening in the stabe to allow light from mirror or light to pass

4

magnification lens with the lowest power

4) Low Power Objective –

6) Stage Clips – clips that keep the slide or specimen from movingon the stage

magnification lens with the highest power

5) High Power Objective –

5

7) Stage –

holds the specimen

6

controls the amount of light entering through the aperature to the objectivefrom the bottom

8) Diaphragm-

7

Pivot Point

Base Mirror

9) Pivot Point-

supports the microscope

11) Mirror

10) Base-

reflects (bends) the light upward onto the slide

part that allows you to tip the ocular toward you

8

12) Fine Focus Adjustment –

13) Coarse Focus Adjustment-

14) Arm –

moves the body tube in small increments

moves the body tube in large increments

attaches the eyepiece and the body tube to the base

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

11

12

Elodea 40 x

Elodea 100x

Elodea 400x

13

The end

14

STOP:

TEACHER NOTES & ADDITIONAL PICS

15

16