Skills-How to work with microscopes

• Biologie
• Middelbare school
• havo, vwo
• Leerjaar 4

Lab skills

Working with microscopes

Learning goals

• What are the parts of the microscope 
• How should you operate the microscope 
• The drawings rules for microscope drawings 

The microscope

eyepiece lens = lens, magnifies 10x

tube = holds the eyepiece lens

revolver = holds the objective lenses, turns around

objective lenses = lenses hold by the revolver. Magnify 4x, 10x and 40x

stage = holds the slide

arm = used to hold the microscope when carrying

focus knob = lets you move the stage up and down. This helps you focus the image. There is a coarse and a fine knob. 

lamp = source of light

base = this is the base the microscope stands on

Click on the pins to learn more about that part of the microscope

Through which part of the microscope do you look?

1. stage
2. objective lens
3. eyepiece lens
4. revolver

Match the part with its function

revolver

objective lens

eyepiece lens

tube

turning piece that holds objective lenses

holds the eyepiece lens

lens, magnifies 10x

lens, magnifies 4x, 10x and 40x

What is the function of the focussing knobs?

1. magnify the object
2. move the stage up and down
3. to hold the microscope
4. turn microscope on/off

What is the use of the objective lenses?

1. magnify image
2. control amount of light
3. move the object up and down
4. sturdiness

Place the names on the correct part of the microscope

base

focus knob

stage

objective lens

tube

What are you no longer allowed to do once you switch form the red objective lens to one of the others?

1. make changes to the amount of light
2. turn the revolver
3. turn the coarse focus knob
4. turn the fine focus knob

What is part 2?

Place in the right order

1

2

3

4

5

6

Place your object on the stage

Make sure the stage is down and the red lens is above the stage

Turn the stage up with the coarse focusing knob while looking through the lens

When the image is in focus you can switch to the yellow lens

Only use the fine focusing knob to adjust the stage

Turn to the red lens, turn the stage all the way down and remove the object

In what state should you hand in the microscope?

1. stage down, smallest objective lens above stage
2. stage up, smallest objective lens above stage
3. stage down, largest objective lens above stage
4. stage up, largest objective lens above stage