Parts of a Microscope

Unit 1-3 NotesMr. Hefti – Pulaski Biology

sperm cells & household dust

Eyepiece (ocular lens)

• Lens you look through• Usually 10X in power

butterfly eggs & mushroom spores

Nosepiece

• Revolves• Allows you to change

objectives

ant holding microchip & microchip

Objectives

• Low, medium, and high power lenses

• Usually 4X, 10X, and 40X in power

eyelashes & strawberry

Stage

• Where you place the specimen to be observed

tarantula‘s eyes & cut hairs on razor

Stage clips

• Holds specimen or slide in place

• Do not bother with these because they will get in your way!

nylon & moth’s “mouth”

Diaphragm

• Adjusts amount of light shining on specimen

bacteria on tongue & Velcro

Adjustment knobs

• Bring image into focus• Coarse used for low

power• Fine used for medium

and high power

mosquito’s head & head lice

Arm and Base

• Structural parts that you hold when transporting microscopes

rust on nail & cauliflower florets