TOPIC: Microscope AIM: How is a specimen measured with a microscope? Hypothesize…… How tall is Ms. Phillip?

Micrometers/ Microns µm 1mm = 1000µm 1m = 1,000,000µm What unit is used to measure cells? Micrometers/ Microns µm 1mm = 1000µm 1m = 1,000,000µm

Paper thickness = about 150 µm

Human hair diameter = 80-100 µm

SHRIMP EGGS

Move decimal three places to the right mm  µm

Example: 3.2 mm = ? 3. 2 3200.0 µm

0.7634mm = ? µm 0. 7 6 3 4  763.4 µm

Move the decimal three places to the left µm mm Move the decimal three places to the left

Example: 789 µm = ? mm 7 8 9 .  .789 mm

53.6 µm = ? mm 0 5 3. 6  .0536 mm

Smaller  Larger = move decimal to left um  mm

move decimal to the right mm um Larger to smaller = move decimal to the right mm um

SLL LSR Silly Little Leprechauns Like Spring Rain

Hypothesize: Determine the length of this cell: HINT: 1000um 2mm = 2000 um

Microscopic Measurement

1. 1mm 3.25mm = Field of view = 3250.0 µm

2. 500um 1000/2 = 500 1mm = 1000um

3. 1000um 2000/2 = 1000 2 mm = 2000um

4. 1000/2 = 500 500um 250um 500/2 = 250 1000um

5. 1000um 2000/2 = 1000 500um 1000/2 = 500 2000um

6. 500um 250um 125um 1000um

7. 2500um 1250um 625um 5mm = 5000um

8. 1000um 5000/5 = 1000 5mm = 5000um

9. 1000um 7000/7 = 1000 7000um

10. 400um 2000/5 = 400 2000um

Determine the length of this cell: TOPIC: Microscope AIM: How are microscope useful in the lab? Homework: List: the step of using a microscope, calculating total magnification and preparing a wet mount slide. Make sure you use complete sentences. Do Now: Determine the length of this cell: 1000um 2mm = 2000 um