Scope Starter Bell Work
Bell Work • 5-7 Min Biology Lab Skills
Scope Starter Quick Review
Target: 100% Mastery
Student Name:
Date:
Period:
1
Anatomy & Optics Quick Match
Write the letter corresponding to the correct part
1. Controls amount of light passing through stage:
2. Never use on high power (\(40\times\) or \(100\times\)):
3. Sharpens focus under high power lens:
4. Platform where glass slide is placed:
Options: A. Stage B. Iris Diaphragm C. Fine Adjustment Knob D. Coarse Adjustment Knob E. Ocular Lens
2
Wet Mount Protocol & Procedure
Order 1–4 & answer the inquiry check
Place the specimen flat in the center of the clean glass slide.
Add 1–2 drops of water or iodine stain directly onto specimen.
Touch coverslip edge at \(45^\circ\) to the liquid drop until spread.
Gently lower coverslip with a probe to prevent air bubbles.
Crucial Technique Check
Why must the coverslip be angled at \(45^\circ\) before dropping rather than laid down flat?
3
Lab Safety & Troubleshooting Drills
Spot & Solve the Issue
Scenario A: Dark Rings
Under \(10\times\), Marcus sees round objects with thick, dark black borders that move when tapped.
What is he actually seeing?
Scenario B: Lens Crash
Elena switches to \(40\times\) and vigorously turns the coarse knob to find the cell.
What is the immediate danger?
Scenario C: Safe Transit
When transporting the microscope from the cabinet to your lab station, describe proper two-hand placement.
Bonus Optic Math
Ocular lens (\(10\times\)) \(\times\) High power objective (\(40\times\)) =
Confidence: 1 2 3 4 5
Score: / 10
