High School Lab Report
Name ________________________________________ Date ____________ Period _______
Complete this portion BEFORE beginning the lab
LAB TITLE: _____Experimental Design Using UV Beads__________
INTRDUCTION: What are some, topics, models, and observations that we have talked about in class relevant to the
lab being conducted?
Scientists and researchers go through a logical process known as the scientific method to study the world
around them. Research is guided by observations and prior research on the topic and used to create a testable
hypothesis consisting of a manipulated variable and responding variable. In order to make proper comparisons,
the researcher must have a control group by which to compare the experimental group to. The experimental
group/s is the group/s in which one variable has been manipulated.
This activity explores the behavior of UV sensitive beads and investigates the effectiveness of different various.
UV Beads are a type of sensor that detects ultraviolet light given off from the sun. When UV beads are exposed
to sunlight, they react by changing colors. UV beads can do this because they contain certain pigments that
change color when exposed to sunlight or other forms of ultraviolet radiation. Exposure to UV radiation is
harmful to skin cells and can cause cancer. Sunscreens contain substances that absorb UV radiation and provide
protection against harmful UV rays. The SPF or Sun Protection Factor measures how much protection the
sunscreen has.
PUPRPOSE: (What are you supposed to learn from this lab?)___We will be exposing the beads to UV radiation to test
the effectiveness of different UV barriers.____
HYPOTHESIS (testable): If we apply the _____________________ (your manipulate) to UV sensitive
beads, then the beads will _____________when exposed to ultra violet light.
PROCEDURE: Describe the steps you will use in this lab to test your hypothesis (complete the experiment)?
Control Procedures:
1. Label 3 petri dishes as your control.
2. Place 5 beads into the controlled petri dishes.
3. Place petri dishes in the sunlight and record any changes.
Experimental Procedures:
1.____________________________________________________________________________________
2. .____________________________________________________________________________________
3. .____________________________________________________________________________________
4. .____________________________________________________________________________________
5. .____________________________________________________________________________________
Complete this section DURING the lab.
RESULTS: Record your data from the lab here including data tables, graphs, drawings, and calculations. The data
table may already be provided in your lab book, copy it here.
Control Group
Beads color before exposure
Bead color after exposure
Experimental Group 1
Beads color before exposure
Bead color after exposure
Experimental Group 2
Beads color before exposure
Graph
Bead color after exposure
Title: _______________________________
Time (minutes)
Control
Exp.1
Exp.2
CONCLUSION: This is where you explain the results of your experiment. You will want to use the data you
collected during the lab as well as your class notes and textbook.
CLAIM 
EVIDENCE 
REASONING 
A one sentence statement of what is
found to be supported based on the
lab experiment.
A description of the evidence, and data,
obtained from this lab that support the
claim. Do not explain WHY the evidence
supports the claim.
An explanation of WHY the evidence supports
the stated claim. What scientific principles
are illustrated or proven by this experiment?
In the space below, revisit and
restate your hypothesis. 
My hypothesis ________________
__________________
was _______________ (supported/
not supported) by the data.
In the space below, make a bulleted list of
all data, facts and evidence collected in this
experiment. Write about the data.

In the control group the beads
turned __________ after
________ minutes.

In experimental group A the beads
turned ___________ after
_________ minutes.

In experimental group B the beads
turned ___________ after
_____________ mintues.
In the space below, explain WHY or HOW the
evidence supports the claim. What scientific
ideas have been studied in class that relate to
your observations during the lab? Use the
introduction of your report to help you through
the reasoning. 
UV beads have a pigment that change color
when exposed to UV light. The evidence
indicates that (restate evidence)____________
_____________________________________
_______ and therefore supports (restate the
claim)________________________________
_______________________ .
Written Conclusion Paragraph – DRAFT TEMPLATE
In these experiments, it was found that ______________________________________________________
_______________________________________________________________________________________.
The data and evidence from the experiments that support this claim are ______________________________
_______________________________________________________________________________________
_______________________________________________________________________________________.
The reason the evidence supports this claim is_______________________________________________________
__________________________________________________________________________________________
__________________________________________________________________________________________
__________________________________________________________________________________________
_______________________________________________________________________________________.
Scientific Conclusion
 State
Lab Title:
Name:
Period:
Course:
_________________________________________________________________________________________________________________________
the claim
_________________________________________________________________________________________________________________________

Summarize
the
evidence
gathered in
the
experiment
 Explain
why the
evidence
supports
the claim.
_________________________________________________________________________________________________________________________
_________________________________________________________________________________________________________________________
________________________________________________________________________________________________________________________
_________________________________________________________________________________________________________________________
_________________________________________________________________________________________________________________________
_________________________________________________________________________________________________________________________
_________________________________________________________________________________________________________________________
_________________________________________________________________________________________________________________________
_________________________________________________________________________________________________________________________
_________________________________________________________________________________________________________________________
Score
Rationale:
4
The claim provided is concise and is clearly supported by several pieces of evidence from the laboratory activity and other texts (notes).
The reasoning section makes a clear and logical connection between the claim and the evidence.
3
The claim provided is concise and is reasonably supported by several pieces of evidence from the laboratory activity and other texts
(notes). The reasoning section makes a connection between the claim and the evidence.
2
The claim is provided and is supported by 1-2 pieces of evidence from the laboratory activity and other texts (notes). The reasoning
section makes little or no connection between the claim and the evidence.
1
The information provided includes some evidence from the laboratory activity. 1 or more sections are incomplete or missing
0
No lab report turned in
Comments:
OR
No evidence is provided