Identify Components, Proper Use, and Care of Light Microscopes

Always wipe up any __________ that is on the scope as soon as possible.

• dust

• water

• soap

• slide

Always cover the microscope with a _______ to keep it clean.

• dustcover

• paper towel

• cloth

• dust spray

Use only __________ to clean the lenses of a microscope. Do not use paper towels or tissues as they will scratch the lenses.

• paper towel

• tissue

• lens paper

• paper

Rotate the ______ out of the way when starting to use the microscope or when they are not needed.

• eyepiece

• lenses

• diaphragm

• clips

Put the prepared slide on the center of the _______. The specimen should be placed over the hole where the light comes through.

• clips

• stage

• diaphragm

• base

Always start with the ____________ lense.

• medium-power (10X) objective

• low-power (4X) objective

• high-power (40X) objective

• objective

Use the ______________ to bring the low-power objective lens close to the slide. Watch from the side and carefully check to make sure the lense does not touch the side.

• course focus knob

• diaphragm

• fine focus knob

• stage

Look through the __________. Bring the specimen into focus using the course focus knob so that the objective lense moves away from the stage.

• eyepiece

• clips

• diaphragm

• objective lens

Never use the ___________ to move the lens toward the stage while looking through the eyepiece. You can easily break a slide or damage the lens.

• diaphragm

• fine focus knob

• eyepiece

• course focus knob

Adjust the amount of light coming to the specimen, using the ________ located under the stage if you are having trouble viewing the specimen.

• clips

• diaphragm

• fine focus knob

• low-power (4X) objective