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