Keystone National High School Gas as the State of Matter Discussion

You should only choose from the materials suggested to complete your experiment, which include:

a freezer or cooler filled with ice

balloons

What are your controls?

Place the balloons in the freezer or cooler filled with ice.

What are some properties of gases?

What was the purpose of your experiment?

What is the relationship between temperature and volume of a gas? Be sure to support your claim with evidence from your results.

Explain what happens to the particles in a gas when the temperature decreases. How does the particles’ change in motion explain your observations about the balloon’s volume?

What are some sources of error in your experiment?

Science | Lab Report
Lab Report
[Use this document as a template for writing your lab report. Descriptions of what to include and examples of each
section have been provided. Before submitting this document to your teacher, delete all the text in brackets,
including this text.]
Title
[This is the title of the lab lesson.
Example: Effect of Soap on Surface Tension of Water]
Type your title here.
Introduction
[This section describes the principles and concepts related to the experiment. It is used to help the person reading
your report to understand the information that serves as foundation for the experiment. It also includes a brief
statement about the purpose of the lab.
Example: Surface tension is the attractive force exerted upon the surface molecules of a liquid by the molecules
beneath. Water has a high surface tension because there are strong attractive forces between water molecules.
Adding surfactants, like soap, can reduce the surface tension of a liquid. The purpose of the experiment was to
determine the effect of soap on the surface tension of water.]
Type your introduction here.
Experimental Methods
[This section should be written in paragraph form and describe how the experiment was conducted, including a
description of controls and how the measurements were taken.
Example: The surface tension of water was tested by counting the number of drops that could fit on the head of a
penny before it spilled over. Both samples of water were left at room temperature for several hours before use.
Approximately 1 mL of soap was added to one sample of water. The same penny was used for both tests, and it
was rinsed and dried thoroughly between tests. Three trials were conducted for each test.]
Type your experimental methods here.
Data and Observations
[This section should include descriptions of results and organized data tables and/or graphs, depending on the
experiment. It is important that the data be easy to read and interpret and include appropriate labels and
descriptions.
Example:
Table 1. Average Number of Drops Added to Head of Penny for Three Trials.
Sample
Average number of drops
water
50
water and soap
10
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Page 1 of 2
Science | Lab Report
]
Type your data and observations here.
Discussion and Conclusions
[Use the questions in your lab lesson to complete this section.
Example:
Soap reduced the surface tension of water because only 10 drops of water and soap mixture were added to the
penny before the liquid spilled over, compared to 50 drops of water without soap. Sources of error include
variations in the volume added with each drop, the time between drops, and the surface of the penny being
cleaned as the water/soap mixture is added in each trial. The experiment could be improved by observing other
indications of surface tension, including measuring the contact angle.]
Type your discussion and conclusions here.
© Stride, Inc. All rights reserved. No reproduction without written consent of Stride, Inc.
Page 2 of 2
Science | Graded Assignment Answer Key | Lab Report Rubric
Graded Assignment Answer Key
Lab Report Rubric
Grades are based on quality and timeliness. Responses should be well written (use a spell-checker) and should
clearly address all parts of the experiment. Use the rubric to maximize your grade on your lab report.
Criterion/prompt
Exemplary (5 points)
Proficient (3-4 points)
Emerging (1-2
points)
Not evident (0
points)
Introduction
Includes a clear
description of the
principles and concepts
related to the experiment.
Includes a partial
description of the
principles and
concepts related to
the experiment.
Includes a vague
description of the
principles and
concepts related to
the experiment.
Some of the
descriptions might
be incorrect.
Missing an
Introduction
section.
Experimental
methods
Includes a clear
description of how the
experiment was
conducted. When
applicable, describes the
controls used in the
experiment.
Includes a partial
description of how
the experiment was
conducted.
Includes a vague
description of how
the experiment
was conducted.
Missing an
Experimental
methods
section.
Data and
observations
Provides data and
observations that are easy
to read and interpret. If
data tables and/or graphs
are created as a part of
the experiment, they are
appropriately labeled.
Provides some data
and observations, but
some information is
missing. Data tables
and/or graphs
provided may be
lacking labels.
Provides little data
or observations.
Missing a Data
and
observations
section.
Discussion and
conclusion
Where applicable,
answers questions by
making evidence-based
claims about the results of
the experiment, cites data
or observations, and
discusses possible
sources of error.
Where applicable,
answers some
questions about the
results of the
experiment, cites
some data or
observations, and
discusses possible
sources of error.
Where applicable,
answers few
questions about
the results of the
experiment, cites
little data or
observations, and
does not discuss
sources of error.
Missing a
Discussion and
conclusion
section.
© Stride, Inc. All rights reserved. No reproduction without written consent of Stride, Inc.
Page 1 of 1