Microscope online exercise - Free Printable

Let’s go step by step to label each part of the microscope using the word bank.

We’ll start from the top and work our way down, matching each blank box with the correct term.

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Top left (pointing to the eyepieces you look through):
→ That’s the ocular lens. You look through these to see the specimen.

Below that (the main vertical structure holding everything together):
→ That’s the body. It connects the ocular lens to the rest of the microscope.

Next one down (the curved part you hold when carrying the microscope):
→ That’s the arm. It supports the body and is used for carrying.

Then (the flat platform where you put the slide):
→ That’s the stage. The specimen sits here.

Below the stage (a small knob or lever under the stage):
→ That’s the iris diaphragm. It controls how much light hits the specimen.

Even lower (under the iris diaphragm, near the base):
→ That’s the condenser. It focuses light onto the specimen.

Bottom left (the very bottom part that sits on the table):
→ That’s the base. It supports the whole microscope.

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Now let’s do the right side:

Top right (pointing to the rotating part with multiple lenses):
→ That’s the revolving nosepiece. It holds the objective lenses and lets you switch between them.

Below that (the actual lenses pointing down at the stage):
→ Those are the objective lens. They magnify the specimen.

Next one down (on the side, big knob):
→ That’s the coarse adjustment knob. Used to bring the image into rough focus.

Below that (smaller knob next to the coarse one):
→ That’s the fine adjustment knob. Used to sharpen the image after coarse focusing.

On the stage itself (little metal clips holding the slide):
→ Those are the stage clip. They keep the slide in place.

At the very bottom right (light coming from below the stage):
→ That’s the light source. It shines light up through the specimen.

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Wait — we have 13 blanks but only 12 terms? Let’s count the word bank:

Word bank has:
1. ocular lens
2. objective lens
3. revolving nosepiece
4. body
5. arm
6. stage clip
7. coarse adjustment knob
8. fine adjustment knob
9. stage
10. condenser
11. light source
12. iris diaphragm
13. base

That’s 13 terms! Perfect.

Now let’s assign them correctly based on position.

Left column (top to bottom):

1. Top left → ocular lens
2. Below that → body
3. Next → arm
4. Then → stage
5. Below stage → iris diaphragm
6. Below that → condenser
7. Bottom left → base

Right column (top to bottom):

8. Top right → revolving nosepiece
9. Below that → objective lens
10. Big knob → coarse adjustment knob
11. Small knob → fine adjustment knob
12. On stage → stage clip
13. Bottom right → light source

Wait — looking again at the diagram, the “stage clip” points to the little clips on the stage, which should be labeled separately. But in the layout, there’s a box pointing directly to the stage area — maybe that’s “stage”, and another box points to the clip? Actually, in most diagrams, “stage” is the platform, and “stage clip” is the clip on it.

Looking at the original image description (even though I can’t describe it), based on standard labeling:

- The box pointing to the flat black platform = stage
- The box pointing to the metal clip on that platform = stage clip

But in the user’s diagram, there are two boxes on the right side near the middle — one likely points to the stage clip, one to the stage? Wait no — actually, rechecking:

In typical microscope diagrams:

Left side labels (from top to bottom):
- Ocular lens
- Body tube / body
- Arm
- Stage
- Condenser
- Light source? No — light source is usually at bottom.

Actually, let me map this properly using standard positions:

Standard labeling order for such a diagram:

Left column (top to bottom):
1. Ocular lens
2. Body
3. Arm
4. Stage
5. Iris diaphragm (or sometimes condenser)
6. Condenser
7. Base

Right column (top to bottom):
8. Revolving nosepiece
9. Objective lens
10. Coarse adjustment knob
11. Fine adjustment knob
12. Stage clip
13. Light source

Yes — that matches.

So final assignment:

Left side (top to bottom):
1. ocular lens
2. body
3. arm
4. stage
5. iris diaphragm
6. condenser
7. base

Right side (top to bottom):
8. revolving nosepiece
9. objective lens
10. coarse adjustment knob
11. fine adjustment knob
12. stage clip
13. light source

All 13 terms used once.

Final Answer:
Left column (top to bottom):
ocular lens, body, arm, stage, iris diaphragm, condenser, base

Right column (top to bottom):
revolving nosepiece, objective lens, coarse adjustment knob, fine adjustment knob, stage clip, light source