1. Microscope Magnification

2. Field of View
10x Magnification

3. Field of View
15x Magnification

4. Field of View
20x Magnification

5. Field of View
30x Magnification

6. Field of View
40x Magnification

7. Field of view
it is the diameter of the circle of light that you see when looking into a microscope.
As the power gets greater, the field of view gets smaller.

8. Micrometer a unit of length in the metric system
one millionth of a meter
Used to be called the micron.
Symbol = mm

9. Under low power ~ 4x (actually 10
Under low power ~ 4x (actually 10 * 4 = 40X), the entire field of view is about 5mm or 5,000 micrometers across.
If an object takes up the entire field of view, it is
5mm or 5,000 micrometers across
If an object takes up 1/2 the field of view, it is
2.5mm or 2,500 micrometers across
If an object takes up 1/4 the field of view, it is
1.25mm or 1,250 micrometers across

10. Under medium power ~ 10x (actually 10
Under medium power ~ 10x (actually 10 * 10 = 100X), the entire field of view is about 2 mm or 2,000 micrometers across.
If an object takes up the entire field of view, it is
2mm or 2,000 micrometers across
If an object takes up 1/2 the field of view, it is
1mm or 1,000 micrometers across
If an object takes up 1/4 the field of view, it is
0. 5mm or 500 micrometers across

11. Under high power ~ 40x (actually 10
Under high power ~ 40x (actually 10 * 40 = 400X), the entire field of view is about mm or 450 micrometers across.
If an object takes up the entire field of view, it is
0.45mm or 450 micrometers across
If an object takes up 1/2 the field of view, it is
0.225mm or 225 micrometers across
If an object takes up 1/4 the field of view, it is
mm or micrometers across

12. Under highest power ~ 100x (actually 10
Under highest power ~ 100x (actually 10 * 100 = 1000X), the entire field of view is about mm or 180 micrometers across.
If an object takes up the entire field of view, it is
0.180 mm or 180 micrometers across
If an object takes up 1/2 the field of view, it is
0.09 mm or 90 micrometers across
If an object takes up 1/4 the field of view, it is
mm or 45 micrometers across