Name:__________________________
Aim:_________________
Graphing: How do we organize data? (Textbook pages: A1-A10)
Date:_____________
After conducting an experiment, scientists have a lot of ______________. What do we do with it? It is
organized into ______________ and _______________. Ultimately, all data ________________ to come
up with a _______________ which supports or refutes the hypothesis of the experiment.
1. Environmental biologists measured how rainfall affects the number of bushels of grain harvested per
acre of farmland. The results are organized in the data table below.
Year
1979
1980
1981
1982
1983
1984
1985
Amount of rainfall (in)
13
7
10
9
11
15
12
a. Which column could be left out of this data
table without interfering with the validity of
the experiment?
b. How would you arrange this for publication?
c. Graph the results of this experiment in the space provided below.
Bushels of grain (per acre)
60
50
65
60
70
20
65
Line Graphs- used to show the relationship between an Independent (manipulated) variable and a Dependent
(responding) variable. It often shows a trend.
a. What is the independent variable in this experiment?
b. What is the dependent variable in this experiment?
Bar Graphs- used to compare groups of data for example, to compare the size or speed of 10 pill bugs.
2.In the space provided, please graph the following information. The blood types of the students in a class
were determined as follows: 8 students-Blood Type A, 1 student- Blood type AB, 4 students-Blood
Type B, and 10 students- Blood type O.
Pie Graphs- used to show how parts make up a whole.
3. Draw a graph that shows that Bobby
receives an allowance of $20.00.
He spends $10.00 on snacks, $5.00 on Itunes,
and $5.00 on incidental expenses, like buying
a magazine or newspaper.
Name:________________________________
Aim:_________________
Date:_____________
Graphing: Lab
1.
An enzyme is a protein that speeds up a biological reaction by lowering the activation energy
needed to start the reaction. Two enzymes are being studied for their ability to digest sucrose (a
complex sugar) into simple sugars. A student records the following data. Graph the data. Make sure to
l
Enzyme A
Enzyme B
a
b
Time (min)
Simple sugar percent
Time (min)
Simple sugar percent
e
(%)
(%)
l
0
0
0
0
f
2
.25
2
.50
u
4
.35
4
1
l
l
6
.45
6
1.5
y
8
.55
8
1.75
.
2. Two classes at Manhasset H.S. typed their blood and wanted to compare their results with the results
gotten when the general population was examined. From the data given, graph an appropriate bar graph.
Label fully.
Type
O
A
B
AB
% General Population
45
40
11
4
% Class A
40
39
16
5
% Class B
50
35
15
0
3. A student studies soil and determines its composition. He records the following sets of results.
Construct circle or pie graphs that reprensent his results. All percents represent MASS.
Soil consists of 90% Minerals
The organic matter of soil is composed of:
85% dead matter
10% plant roots
5% Living organisms
The Living organisms of soil are:
40% bacteria
40% fungi and algae
12% earth worms
5% insects and spiders
3% nematodes, worms, insect larva
4. These are the results of a nutritional study of the calorie requirement of boys and girls throughout their
childhood. Please graph this data. Label clearly.
Age
Calorie Requirements
Boys
Girls
1200
1000
1500
1300
1800
1500
2200
1900
2400
2200
3000
2500
3500
2800
3700
2700
3000
2500
2
4
6
8
10
12
14
16
18
5. A student decides to culture hydra in the laboratory. He records his results as follows. Please graph and
label.
Days
1
5
8
11
13
14
# of Hydra
1
10
20
50
90
120
6. A woman is diagnosed with anemia. Her doctor decides to treat her by supplementing her diet with both
Iron and Vitamin B12. He also sends her for a weekly blood test. These are her results. Please graph
and label fully.
Note: Average # R.B.C in 4.5 million cc
R.B.C. count
3.1 million/cc
3.6 million/cc
3.9 million/cc
4.4 million/cc
Week
1
2
3
4