GRAPHS AND CHARTS
• OBJECTIVE 1
• TEKS 2C
Bar Graph
A bar graph is used to show relationships between groups.
The two items being compared do not need to affect each
other. It's a fast way to show big differences. Notice how
easy it is to see what was done in the experiment above
with bean plant growth and different brands of fertilizer.
Bar Graph Prediction Problem:
Grade 11 April 2004 (1 of 5)
47 According to this
information, what is the best
prediction for the boiling
point of the seven carbon
alcohol?
A 169°C
B 178°C
C 186°C
D 192°C
Analyze and Evaluate
6 The graph shows the amount of carbon-14 in tissue over time.
According to the graph, if a bone contains 1/8 the amount of
carbon-14 that it did originally, its approximate age is —
F
G
H
J
5,700 years
11,400 years
17,100 years
22,800 years
Line Graph
A line graph is used to show continuing data; how one
thing is affected by another. It's clear to see how things
are going by the rises and falls a line graph shows. This
kind of graph is needed to show the effect of an
independent variable on a dependent variable.
Analyze:
4 According to the graph,
what partial pressure of
oxygen would saturate
67% of hemoglobin in the
blood?
A 2.8 kPa
B 5.2 kPa
C 8.7 kPa
D 12.4 kPa
49 According to the graph,
about how much hemoglobin
would be saturated at an O2
pressure of 7.3 kPa?
A 32%
B 67%
C 89%
D 92%
39 The graph shows the
distance traveled by a
vehicle over a certain
period of time. Which
segment of the graph
shows the vehicle moving
with the greatest speed?
A L
B M
C N
D O
51 At which temperature do KBr and KNO3 have the same
solubility?
A 27°C
C 65°C
B 48°C
D 80°C
Circle (Pie) Graph
A circle graph is used to show how a part of something
relates to the whole. This kind of graph is needed to show
percentages effectively.
47 Which graph best shows the comparison of the elements to
the total composition of the copper ore?
Organize
Analyze
Evaluate
Predict
Infer
4 Which statement is best supported by these data?
A The solution’s freezing point remained constant with each increase
in the amount of solute.
B The freezing point of the solution decreased as the amount of
dissolved solute increased.
C The rate of freezing increased when more solute was dissolved in
the solvent.
D The solution remained a liquid because more solute was added to
the solvent.
1 While studying the relationship between the
pressure and the volume of a gas, members of a
science class conducted an experiment in which they
changed the pressure on a balloon and then
measured the balloon’s volume. They collected the
data on the table on the left. Which graph correctly
represents these data?
52 The table shows the atomic radii of some elements in
Periods 1 through 4 of the periodic table. Which inference
can be made from this information?
F Atomic radii decrease from left to right.
G Atomic radii increase from bottom to top.
H Atomic radii decrease from right to left.
J Atomic radii double from top to bottom.
Exercise #1
Use the following graph of Volume vs. Mass to answer the next three questions.
1.As the volume of a
sample increases from
200 ml to 300 ml, what
happens to the mass?
2. According to this graph,
what is the density of the
substance being studied?
3. Based on the information provided in the chart below, what substance was
represented by the data displayed on the graph?
Substance
Density (g/ml)
Hydrogen(g)
0.00009
Mercury(l)
13.5
carbon(s)
2.3
ammonia(g)
0.008
water(l)
1.00
sucrose(s)
1.6
Exercise #2
•
Create a lab report that replicates this
experiment. Identify the materials, equipment
and procedures.