Download - Lab & Safety Skills Manual
Lab & Safety Skills Manual
Making Tables
Number of animal species
Phylum Number
Coelenterata 11,000
Mollusca 80,000
Arthropoda 826,000
Chordata 47,000
Echinodermata 5,000
Worms 26,000
Porifera 5,000
Making Graphs
Making Histogram Graphs in Microsoft Excel
010000
20000300004000050000
600007000080000
Po
rife
ra
Co
elen
tera
ta
Wo
rms
Mo
llu
sca
Ch
ord
ata
Ech
ino
der
mat
a
Making Graphs
Era Number of years
Number of degrees
Cenozoic 65,000,000 5
Mesozoic 160,000,000 13
Paleozoic 345,000,000 28
Precambrian 3,930,000,000 314
Making Graphs
Making Circular Graphs in Microsoft Excel
Cenozoic
Mesozoic
Paleozoic
Precambrian
a. Eyepiece
b. Body tube
c. Revolving nosepiece
d. Low-power objective
e. High-power objective
f. Stage
g. Stage clips
h. Base
i. Light source
j. Diaphragm adjustment
k. Arm
l. Fine focus adjustment
m. Coarse focus adjustment
Laboratory Skills Assessment
How many millimeters wide is the field of view shown? 12.0 mm
Laboratory Skills Assessment
How many millimeters wide is the field of view shown? 12.0 mm
High Power Objective lens = 40XLow Power Objective Lens = 10X
High Power Field of view = Diameter of the Low Power field of view ÷ (HP ÷ LP)
(HP) ÷ (LP) ------ 40X ÷ 10X = 4
2000µ ÷ 4 = 500µ
Organism 1: Approx. 1.3 cm
Field of View: Approx. 3.3 cm
500μ*1.3cm
3.3 cm
Find the width of the organisms by measuring across the organism at several places. Find the central tendency or average width.
1.5 cm
1.4 cm
1.2 cm
1.3 cm
1.1 cm
1.3 cmAverage Width
#4
500µ * 1.3 cm / 3.3 cm = 197µ
500μ * 0.56 cm / 3.3 cm = 84.8μ
500µ * 0.75 cm / 3.3 cm = 113.6μ
The mass indicated on the scale is:
47.52 g
The mass indicated on the scale is:
129.07 g
a. 12.5 cm f. 12.0 cm
b. 11.3 cm g. 9.7 cm
c. 13.25 cm h. 12.97 cm
d. 13.95 cm i. 13.34 cm
e. 10.3 cm j. 11.71 cm