Microscope Use

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

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

When you are ready to increase the microscope's power follow this rule. Once the specimen is in focus, DO NOT turn either of the focus knobs yet. Rotate the ________ into place and now carefully adjust the focus using the ____________.

• low-power (4X) objective and course focus knob

• medium-power (10X) objective and course focus knob

• high-power (40X) objective and fine focus knob

• medium-power (10X) objective and fine focus knob

When you have the specimen in focus using the medium-power objective, move to __________ and use the ________ to adjust the focus.

• low-power (4X) objective and fine focus knob

• medium-power (10X) objective and course focus knob

• high-power (40X) objective and course focus knob

• high-power (40X) objective and fine focus knob

When you are done, always_____________________.

• take the slide off the stage and clean it as directed

• take the slide off the stage and put it in the slide box as is.

• leave the slide for the next class

• leave the slide and cover the microscope

When you are done, always ___________

• turn on the light

• leave it for the next class

• turn off the light

• leave the light on and cover the microscope

When you are done, always __________________.

• rotate the objectives to the high-power (40X) objective and lower the stage

• rotate the objectives to the medium-power (10X) objective and lower the stage

• rotate the objectives to the low-power (4X) objective and raise the stage

• rotate the objectives to the low-power (4X) objective and lower the stage

When you are done, always _________________.

• refill and organize microscope kits

• leave paper and waste in the sink

• leave the lab station for the next class

• put the microscope kit on the sink

When you focus on a new specimen, always begin with

• low power and coarse adjustment.

• low power and fine adjustment

• high power and coarse adjustment

• high power and fine adjustment