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Measuring Objects with a Light Microscope: Graticules, Calibration & OCR A Biology Practical Skills

Measuring Objects with a Light Microscope: Graticules, Calibration & OCR A Biology Practical Skills

Subject: Biology

Age range: 16+

Resource type: Assessment and revision

Last updated

3 August 2026

pdf, 320.21 KB
pdf, 320.21 KB

Clear, exam‑focused OCR A Biology revision notes on using eyepiece and stage graticules, calibrating magnification, measuring cells and avoiding common practical errors. Includes worked examples, required practicals, quick‑quiz questions and examiner tips for mastering microscope measurement skills.

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