Part 3: Using Microscopes

Question 1

Record the rules for scientific drawings (7)

Answer 1

1. Use a sharp pencil
2. No fuzzy lines
3. No shading or colour
4. Label lines must be drawn with a ruler (and preferably parallel to the top of the page)
5. Label lines mustn’t cross
6. Label lined must touch what they are labelling
7. No arrowheads

Question 2

Explain the function of the different parts of the microscope: course focus, fine focus, light, eyepiece, objective lens, stage, slide (7)

Answer 2

1. Course focus: Used when first focusing the sample.
2. Fine focus: Used to fully focus the sample.
3. Light: Illuminates the slide, making the specimen visible.
4. Eyepiece: The part you look through and also contains a x10 lens.
5. Objective lens: You can rotate to allow ise of x4, x10, or x40 lenses
6. Stage: The slide is placed on this.
7. Slide: The specimen to view is mounted on here.