Answers PBCSD_Grade_Forgiveness_2001340_Environmental_Science_S1_2020Designing Scientific Investigations

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 wall clock

an egg timer

a stopwatch

a calendar

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

to make measurements in degrees Celsius

to make measurements in degrees Fahrenheit

to record continuous measurements over several minutes

to record individual measurements several times in a day

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

in a bar graph

in a data table

in a simple diagram

in a written paragraph

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?

Some of the growth rings are wider than others.

The tree was 20 years old when it was cut down.

A forest fire burned the tree during the years that it was alive.

The widest growth rings indicate years that had the most rainfall.

Tonya plans to use the lab instrument that is shown below in an experiment.Which property of matter does the instrument measure?

mass

volume

density

temperature

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

units.

graphs.

written descriptions.

photos of measurement.

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?

in a line graph

in a data table

in a bar graph

in a pie graph

Which action is the best example of a direct observation?

identifying which bird was present by the tracks that it leaves in the sand at a beach

reading numbers on a heat sensor to conclude that there is a deer in the night woods

listening to a cricket chirp at night and counting the number of chirps per minute

determining the seal population of an island by counting seals in 10 square meters of the island

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?

millimeters

centimeters

decimeters

meters

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

in a separate column after the column of data values

in parentheses, in the title of the table

in the headings of columns that list the data values

in a note next to an asterisk, below the table

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