AnswersPA Human Anatomy Physiology A 2026-2027 SMITH ICScientific Inquiry

Collecting and Organizing Data Answers

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Which tool would be likely to provide the most accurate measurement of time in a laboratory experiment involving sprinting times of students?

A
a wall clock
B
an egg timer
C
a stopwatch
D
a calendar
2
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Tonya plans to use the lab instrument that is shown below in an experiment.Which property of matter does the instrument measure?

Question illustration
A
mass
B
volume
C
density
D
temperature
3

Which action is the best example of a direct observation?

A
identifying which bird was present by the tracks that it leaves in the sand at a beach
B
reading numbers on a heat sensor to conclude that there is a deer in the night woods
C
listening to a cricket chirp at night and counting the number of chirps per minute
D
determining the seal population of an island by counting seals in 10 square meters of the island
4

Where in a data table should units of measurement be shown?

A
in a separate column after the column of data values
B
in parentheses, in the title of the table
C
in the headings of columns that list the data values
D
in a note next to an asterisk, below the table
5

Which is the best reason for using a temperature probe instead of a simple laboratory thermometer?

A
to make measurements in degrees Celsius
B
to make measurements in degrees Fahrenheit
C
to record continuous measurements over several minutes
D
to record individual measurements several times in a day
6

Dan gave five sunflower seedlings each a different type of fertilizer. He measured the initial and final heights of each plant after a month, then calculated the total growth of each one in centimeters. Which is the best method for visually representing the data for comparison?

A
bar graph
B
pie graph
C
data table
D
Venn diagram
7

Some tools have various levels of graduations. For example, a ruler may have graduations for both millimeters and centimeters. When measuring the length of an earthworm, which graduations would allow for the most accurate measurement?

A
millimeters
B
centimeters
C
decimeters
D
meters
8

This graph shows how tall five types of trees were after they grew for 10 years. Which statement correctly describes the data shown in the graph and the type of observation used?

Question illustration
A
The gingko tree grew 14 feet; this is a qualitative observation.
B
The bur oak tree’s growth rate averaged 2.5 feet per year; this is a quantitative observation.
C
The bur oak tree is twice the height of the ash tree; this is a qualitative observation.
D
The Norway spruce grew more slowly than the sycamore every year; this is quantitative data.
9

Which type of data is qualitative data?

A
heights in meters
B
volumes in milliliters
C
calculations of density
D
descriptions of behavior
10

Which is usually the best way to present or communicate inferred data?

A
in a bar graph
B
in a data table
C
in a simple diagram
D
in a written paragraph
11

Nydia gathered data by observing the cross section of the tree trunk that is shown below.Nydia noted all the information below. Which statement gives quantitative data?

Question illustration
A
Some of the growth rings are wider than others.
B
The tree was 20 years old when it was cut down.
C
A forest fire burned the tree during the years that it was alive.
D
The widest growth rings indicate years that had the most rainfall.
12

LeeAnn wants to organize her data from researching the effect of hours of sunlight on plant growth to see if there is a trend in the data. Which would be the best way for LeeAnn to display her data for analysis so she can make predictions about the amount of light needed for maximum growth?

A
in a line graph
B
in a data table
C
in a bar graph
D
in a pie graph
13

Carlos is heading a student council project to improve cafeteria meals. He surveyed all students who eat cafeteria lunches to find out which of the five weekly cafeteria options they like least. What steps should Carlos take to best display this data?

A
He should total the votes for each of the options and plot these five values in a pie chart.
B
He should total the votes for each of the options and plot these five values in a line graph.
C
He should average the votes for each of the options and list the averages in a data table.
D
He should analyze the votes for each option and summarize the findings in a paragraph.
14

In a scientific investigation, the term “quantitative data” refers to numbers that are usually followed by

A
units.
B
graphs.
C
written descriptions.
D
photos of measurement.
15

Jim’s heart rate was monitored during periods of exercise and periods of rest. The graph shows the result of one 50-minute test.Which statement is an inference that can be made by using the graph?

Question illustration
A
Jim’s heart rate was 60 beats per minute at the start of the test.
B
Jim’s maximum heart rate during the test was 140 beats per minute.
C
Jim’s heart rate increased steadily as he continued exercising.
D
Jim’s heart rate decreased quickly after 30 minutes since he is in good shape.

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