AnswersRVACR EcologyCollecting and Organizing Data

Collecting and Organizing Data Answers

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1
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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
2
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Which type of data is qualitative data?

A
heights in meters
B
volumes in milliliters
C
calculations of density
D
descriptions of behavior
3

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
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

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
6

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.
7

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
8

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
9

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.
10

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

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