Question

adjust the ______ to ensure light is passing through the specimen.
clean the lens with ______ paper only.
return the objective lens to low power when you are finished.
keep the microscope clean.
keep it covered when not in use.
don’t use the course adjustment knob with the high - power lenses. you could ______ the slide.
don’t put specimens directly on the microscope.
don’t touch the lenses with your hands or with other objects.

Explanation:

Microscope usage involves adjusting the diaphragm to control light passing through the specimen. Lenses are cleaned with lens - paper. High - power lenses require careful handling to avoid damaging the slide. When not in use, the microscope should be covered.

Answer:

• Diaphragm
• Lens
• Covered
• High
• Damage
• Hands