Science - Grade 10 Biology - Using a Microscope

Body tube

Body tube

Separates the ocular lens from the objective lens

Rotating nose piece

Holds the objective lenses

Objective lenses

Magnifies specimen, three lenses are usually 4x, 10x, and 40x

Stage clips

Holds the slide in position on the stage

Diaphragm

Allows light to pass through the specimen

Lamp

Supplies the light that passes through the specimen

Eyepiece/ocular lens

Magnifies the specimen, usually by 10x; single lens

Arm

Holds the tube in place and is used to carry the microscope

Stage

Supports the slide for observation

Coarse adjustment knob

Moves the stage up or down to focus on the specimen

Fine adjustment knob

Sharpens an image

Base

Provides a stable platform for the microscope