Gummy Bear Lab Rubric
Area
Satisfactory (6)
Group member names:
Borderline (4)
Unsatisfactory (2)
Descriptive title. Typed
Title / Format
(x1) with correct spacing,
font, & margins.
Grammar and spelling
are correct.
General title. Some errors
in formatting. Few
grammar and spelling
errors are present.
No title. Formatting
instructions not
followed. Multiple
grammar and spelling
errors.
Hypothesis
Clear explanation of
(x2) purpose. Independent
and dependent variables
identified.
General explanation of
purpose. Independent and
dependent variables not
identified.
No explanation of
purpose. No variables
identified.
Materials
Complete list of
(x1) materials used. Safety
requirements explained
well.
Partial list of materials
used. Safety requirements
mentioned &/or missing
key points.
No materials listed.
Safety requirements not
addressed.
Procedure
Clear step-by-step
(x3) description of
experiment. Groups
clear. Reproducible
based on description.
Controlled variables
addressed well.
General summary of
experimental process.
Groups present. Only parts
of experiment
reproducible. Controlled
variable mentioned &/or
missing key points.
No description of
procedure given. Groups
missing. Not
reproducible. Controlled
variables not addressed.
Data recorded but hard to
follow. Labels missing.
Result trends missing or
unclear in representation.
No data recorded.
Missing units. Result
trends or representation
not present.
Data & Results Data clearly recorded.
(x3) Calculations correct.
Easy to see trends in
results representation.
Discussion
Critical evaluation of the
(x4) hypothesis based on
results. Provides strong
rationale in analysis of
content. Identifies and
explains sources for
design flaws in
experiment.
Adequate evaluation of the
hypothesis based on some
results. Provides good
rationale in analysis of
content. Identifies but does
not explain sources for
design flaws in the
experiment.
No evaluation of the
hypothesis. Provides
little or no rationale in
analysis of content. No
design flaws are
identified.
References
Cited correctly.
(x1) Reference materials
enhance overall
understanding of topic.
Cited with minor errors.
References are standard
for topic presented.
No citation when
needed.
References below level
of required.
Participated in lab design,
execution of lab, and lab
report.
Missing participation in
lab design, execution of
lab, and lab report.
Individual
score*
(10 pts)
Participated well in lab
design, execution of lab,
and lab report.
Totals
_______/100
early bonus?
DUE DATE
The typed lab report is due on January 3rd/ 4th 2013 to Mr. Ulrich even if you are absent. For each day late,
the lab report will lose 10% each day. No lab reports will be accepted after January 10th.
Individual Responsibility Sheet
Explain what your role(s) were in both the lab and the lab report process. Give specific examples – this is 10%
of your grade. Afterwards please sign your name to verify the work you completed on this assignment.
Lab Design
Lab Execution
Lab report
_______________________________________________________________________________________
Printed Name
Signature
Date
Rubric Details
Materials & Procedures (15)
____ List of materials complete and appropriate
____ Safety concerns were addressed if not in given procedure
____ Reference made to procedure list given
____ Explanation of designed procedure
____ Clear step-by-step description of experiment
____ Lab procedure reproducible based on procedure description
Data & Results (20)
____ Data clearly recorded with format (table)
____ Calculations are correct and meaningful
____ Easy to see trends in sketch, graph, table, or other diagram
____ Graph- present?
____ axes
____title
____scale
____ line/curve
____ Sketch / Diagram- present?
____ clarity
____ labels
____ accuracy
_____ Control and treatment group
____ Controlled variables addressed
____ legend / key (if needed)
Discussion (30)
____ Critical evaluation of hypotheses
____ Critical evaluation of results in light of diffusion and osmosis & permeability
____ Critical analysis of four ingredients in regards to biochemistry: Sucrose, citric acid, sodium citrate, & lauric acid
____ Identifies and explains sources for lab design flaws (2+)
____ Suggests and justifies explanation for change in lab design
References (5)
____ Cited correctly.
____ Chosen references enhance overall understanding of topic.
Key: + exceeds expectations
 met expectation
─ below expectation
 missing / not addressed
Gummy Bear Lab Report - Overview
Scientists use an experiment to search for cause and effect relationships in nature. In other words, they design
an experiment so that changes to one item cause something else to vary in a predictable way. These changing
quantities are called variables, and an experiment usually has three kinds: independent, dependent, and
controlled. In you lab report you will need to address all three variables.
Contents
Format / Title:
The report is to be typed, 1 ½ or double-spaced with a standard font size 12 - Times New Roman or Arial.
Margins are to be no more than 1” for each edge. The title should be clearly labeled at the top of the page. It
should be descriptive enough to give the reader an idea what he or she will be reading.
Hypothesis: You will write a statement making a prediction on what you expect to see in your results. You need
to use the If…then format. You will need to identify your dependent and independent variables in your
hypothesis by underling them. An independent variable is the one that is changed by the scientist. In an
experiment there is only one independent variable. The dependent variable changes in response to the change
the scientist makes to the independent variable. The new value of the dependent variable is caused by and
depends on the value of the independent variable. For example, if you open a faucet (the independent variable),
the quantity of water flowing (dependent variable) changes in response--the water flow increases. The number
of dependent variables in an experiment varies, but there is often more than one.
Controlled variables are quantities that a scientist wants to remain constant, and he must observe them
as carefully as the dependent variables. For example, if we want to measure how much water flow increases
when we open a faucet, it is important to make sure that the water pressure (the controlled variable) is held
constant. That's because both the water pressure and the opening of a faucet have an impact on how much water
flows. If we change both of them at the same time, we can't be sure how much of the change in water flow is
because of the faucet opening and how much because of the water pressure.
Materials: This is a simple list of laboratory equipment and other materials needed to perform the experiment.
In this section you will identify any safety issues related to the equipment we are using.
Procedure: This is a summary of what steps were taken to carry out the experiment. It will need to be detailed
enough so that another person could perform the experiment based on your description. This is where you
would address any controlled variables during the experiment in carrying out the procedure.
Data & Results: Here you would include your raw data obtained during the lab. Results would include any
calculations. This section can be represented using sketches, graphs, tables, or other diagrams.
Discussion: This is where you evaluate your hypothesis. Did your experiment support or refute your hypothesis
and explain. Be honest here. Evaluate your data in light of what should happen. You need to address any
problems with experimental design or any other problems you encountered; why did you get the data you did?
References: If you make a statement that is not common knowledge in a paper and doesn’t come from your
results, cite the source in the text of your discussion. Make the statement and then write the name of the author
and the year of the publication (Jones, 1988). Do not use numbers for citations. A reference sheet or works cited
should also accompany the lab report.