Using a Light Microscope: A Step-by-Step Guide

What methods do humans use to protect themselves from mosquitoes?

• Insect repellents, shirts, pants, or hands

• Sunglasses and scarves

• Sunscreen, hats, and gloves

• Raincoats and umbrellas

How should you carry a light microscope?

• With one hand under the base

• With one hand on the arm

• With two hands, one under the base and one on the arm

• With both hands on the arm

What should you do before you can see anything through the microscope?

• Move the stage to the top

• Place the slide on the stage

• Adjust the oculars

• Turn on the light

How should the stage clip be used when placing a slide on the stage?

• It should be removed

• It should be taped to the slide

• It should use pressure to hold the slide in place

• It should sit on top of the slide

Which objective lens should you start with when using a microscope?

• The least powerful objective

• The 100x objective

• The most powerful objective

• The 40x objective

What should you use to initially focus the microscope?

• The light adjustment knob

• The stage control knobs

• The coarse focus knob

• The fine focus knob

How can you adjust the distance between the oculars?

• By moving the stage

• By rotating the nose piece

• By changing the objective lens

• By adjusting the oculars to match your eyes

What should you do if you can't find your sample under the microscope?

• Increase the magnification

• Move the slide so the edge of the cover slip is under the objective

• Change the slide

• Turn off the light

What is the actual magnification if you are using a 40x objective lens?

• 40x

• 400x

• 4x

• 10x

What is the first step in the cleanup routine for the microscope?

• Rotate the lenses to 4x magnification

• Wrap the cord around the arm

• Unplug the microscope

• Place the slide back where you got it from