TOPIC: MicroscopeAIM: How is a specimen measured with a microscope?Hypothesize…… How tall is Ms. Phillip?
What unit is used tomeasurecells?
•Micrometers/ Microns
•µm•1mm = 1000µm•1m = 1,000,000µm
•Paper thickness =about 150 µm
•Human hair diameter =
80-100 µm
SHRIMP EGGS
mm µm
•Move decimal three places to the right
•Example:3.2 mm = ? 3. 2 3200.0 µm
•0.7634mm = ? µm
•0. 7 6 3 4 •763.4 µm
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
•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:
2mm =
2000 um
1000um
MicroscopicMeasureme
nt
1mm
•Field of view =3250.0 µm3.25mm =
1.
1000um
500um
1mm =
1000/2 = 500
2.
1000um
2000um2 mm =
2000/2 = 1000
3.
500um
250um
1000um
1000/2 = 500
500/2 = 250
4.
1000um
500um
2000um
2000/2 = 1000
1000/2 = 500
5.
500um 250u
m
1000um
125um
6.
2500um 1250u
m
5000um
625um
5mm =
7.
5mm
1000um
= 5000um
5000/5 = 1000
8.
7000um
1000um
7000/7 = 1000
9.
2000um
400um
2000/5 = 400
10.
TOPIC: MicroscopeAIM: 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:
2mm =
2000 um
1000um