Leo+CSI

toc =__CSI: Milford__= =1 Day Report:=

Observations
A cardboard penguin was stolen from Mrs. Laguna's room. A ransom note was left behind, which is evidence of the <span style="background-color: transparent !important; background-position: initial initial !important; background-repeat: initial initial !important; border: none !important; display: inline-block !important; float: none !important; font-family: arial,helvetica,sans-serif !important; font-size: 13px !important; font-style: normal !important; font-variant: normal !important; font-weight: normal !important; height: auto !important; line-height: 19.5px !important; margin: 0px !important; min-height: 0px !important; min-width: 0px !important; padding: 0px !important; text-decoration: underline !important; text-indent: 0px !important; vertical-align: baseline !important; width: auto !important;">. Mrs. Laguna also seemed uneasy when she delivered the news to Zach about the "ransom note." The handwriting on the note strongly resembles that of Mrs. Laguna's. Nevertheless, someone else still could have taken the penguin. There seems to be three suspects: Mr. Beil, Mr. Hood and Mrs. Laguna.

Background Information
__Paper chromotography__ is an analytical method technique for separating and identifying mixtures that are or can be coloured, especially pigments.

Inferences or Hypothesis
I think that Mrs. Laguna took the penguin or had someone else take it.

Tests Performed
We did the paper chromotography test on different <span style="background-color: transparent !important; background-position: initial initial !important; background-repeat: initial initial !important; border: none !important; display: inline-block !important; float: none !important; font-family: arial,helvetica,sans-serif !important; font-size: 13px !important; font-style: normal !important; font-variant: normal !important; font-weight: normal !important; height: auto !important; line-height: 19.5px !important; margin: 0px !important; min-height: 0px !important; min-width: 0px !important; padding: 0px !important; text-decoration: underline !important; text-indent: 0px !important; vertical-align: baseline !important; width: auto !important;"> that we collected from various Milford Faculty who were suspects. We wanted to see which colours in the aftermath of the test most closely resembled that of the ink used on the ransom note. No major matches were found, but the coloured results are below.

Data
Hood - Blue Kirschmen - No change in colour Beil - Blue Lancos - Purple Laguna - Black Cravener - Orange Rhodes - Neon Blue

Conclusions
The thief used a unique black pen becuase it didn't match up to all of. The closest ink match was of Mr. Lancos' pen. =2 Day Report:=

Observations
The <span style="background-color: transparent !important; background-position: initial initial !important; background-repeat: initial initial !important; border: none !important; display: inline-block !important; float: none !important; font-family: arial,helvetica,sans-serif !important; font-size: 13px !important; font-style: normal !important; font-variant: normal !important; font-weight: normal !important; height: auto !important; line-height: 19.5px !important; margin: 0px !important; min-height: 0px !important; min-width: 0px !important; padding: 0px !important; text-decoration: underline !important; text-indent: 0px !important; vertical-align: baseline !important; width: auto !important;"> we collected are blue, purple or green, but overall they are all different which will make it easier to identify the thief.

Background Information
Photos of anti-penguin propaganda were found in Mr. Hood's and Beil's <span style="background-color: transparent !important; background-position: initial initial !important; background-repeat: initial initial !important; border: none !important; display: inline-block !important; float: none !important; font-family: arial,helvetica,sans-serif !important; font-size: 13px !important; font-style: normal !important; font-variant: normal !important; font-weight: normal !important; height: auto !important; line-height: 19.5px !important; margin: 0px !important; min-height: 0px !important; min-width: 0px !important; padding: 0px !important; text-decoration: underline !important; text-indent: 0px !important; vertical-align: baseline !important; width: auto !important;">. Mr Beil has an anti penguin poster and it is very suspicious. Mr. Hood also has one. The penguin was found (see picture) outside the main office in front of an old photo of Mr. Makoul.

Inferences or Hypothesis
It seems as if Mr. Lancos is the thief because the paper chromotography test strongly resembles that of his pen.

Tests Performed
Due to the paper chromotography and the density test, we ruled out Mrs. Kirschman as a suspect.

Data
The density of the mystery liquid is 0.85 g.

Conclusions
Mr. Lancos is now the prime suspect.

=3 Day Report=

Observations
The heating curve test was done and the liquid began to bubble quite a lot, it also started to have condensation appear on the side of the test tube.

Background Information
We found another pen from Mrs. Cravener which we a did chromatography test on and the colours of the test matched with the ransom notes chromatography test colours.

Inferences or Hypothesis
It seems now as if Mrs. Cravener stole the penguin.

Tests Performed
The heating curve test was performed on the liquid that "poisoned" the penguin.

Data
The heating curve test that we did had two phases when the temperature leveled off for a minute or two.

Conclusions
It seems now as if Mrs. Cravener stole the penguin.

=4 Day Report=

Observations
We discovered a note written by Mrs. Cravener that looked similar to the ransom note. During the fractional distillation test, while the liquid in the test tube was vapourizing, it looked yellow and foggy.

Background Information
Since the fraction is being heated, this lab might take about half an hour.

Inferences or Hypothesis
It seems as if Mrs. Cravener committed the crime.

Tests Performed
Today we performed the fractional distillation test.

Data
The <span style="background-color: transparent !important; background-position: initial initial !important; background-repeat: initial initial !important; border: none !important; display: inline-block !important; float: none !important; font-family: arial,helvetica,sans-serif !important; font-size: 13px !important; font-style: normal !important; font-variant: normal !important; font-weight: normal !important; height: auto !important; line-height: 19.5px !important; margin: 0px !important; min-height: 0px !important; min-width: 0px !important; padding: 0px !important; text-decoration: underline !important; text-indent: 0px !important; vertical-align: baseline !important; width: auto !important;"> leveled off at 79 <span style="background-color: transparent !important; background-position: initial initial !important; background-repeat: initial initial !important; border: none !important; display: inline-block !important; float: none !important; font-family: arial,helvetica,sans-serif !important; font-size: 13px !important; font-style: normal !important; font-variant: normal !important; font-weight: normal !important; height: auto !important; line-height: 19.5px !important; margin: 0px !important; min-height: 0px !important; min-width: 0px !important; padding: 0px !important; text-decoration: underline !important; text-indent: 0px !important; vertical-align: baseline !important; width: auto !important;"> Celsius and the tube in which it transfers the vapours of the <span style="background-color: transparent !important; background-position: initial initial !important; background-repeat: initial initial !important; border: none !important; display: inline-block !important; float: none !important; font-family: arial,helvetica,sans-serif !important; font-size: 13px !important; font-style: normal !important; font-variant: normal !important; font-weight: normal !important; height: auto !important; line-height: 19.5px !important; margin: 0px !important; min-height: 0px !important; min-width: 0px !important; padding: 0px !important; text-decoration: underline !important; text-indent: 0px !important; vertical-align: baseline !important; width: auto !important;"> was put in a test tube to collect the <span style="background-color: transparent !important; background-position: initial initial !important; background-repeat: initial initial !important; border: none !important; display: inline-block !important; float: none !important; font-family: arial,helvetica,sans-serif !important; font-size: 13px !important; font-style: normal !important; font-variant: normal !important; font-weight: normal !important; height: auto !important; line-height: 19.5px !important; margin: 0px !important; min-height: 0px !important; min-width: 0px !important; padding: 0px !important; text-decoration: underline !important; text-indent: 0px !important; vertical-align: baseline !important; width: auto !important;"> 1. The test was repeated for the second substance.

Conclusions
We have a new and credible suspect. Mrs. Cravener! =5 Day Report=

Observations
The splints, when lit with a flame would either catch or not, when we lit the flames, only one was flammable. The other two liquids did not catch on fire.

Background Information
We got the liquids (called fractions) from heating test tubes. When the substance was heated, it released bubbles which traveled to another test tube which was filled with some of the fraction. We didn't know what they were before-hand or afterward.

Inferences or Hypothesis
Fraction A may have been ethyl alcohol because it was flammable and its density was close to 0.79g/mL. Fraction B may have been could have been a mixture of ethyl alcohol and water because it was not flammable and it had a density of the mean of the two substances. Fraction C may have been water because it wasn't flammable and it had a density close to water.

Tests Performed
Today we performed the flammability test and the density test.

Data
Fraction A //was// flammable and its density was 0.83g/mL. Fraction B //was not// flammable and its density was 0.93g/mL. Fraction C //was not// flammable and its density was 1.06g/mL.

Conclusions
The penguin may have been poisoned by ethyl alcohol.

=Who Done It?= After collecting a lot of evidence, along with common sense, I narrowed it down to a few suspicious persons: Mr. Lancos, Mrs. Laguna and Mrs. Cravener. From my best judgment, and analysis of the evidence, I think Mrs. Cravener took the penguin. Her paper chromotography test was the closet match to the ransom note pen. Also, the note we found that she wrote about a meeting was extremely similar to the ransom note. I do not think that Mr. Hood or Mr. Beil stole the penguin because I don't believe they would leave obvious evidence- the anti-penguin pictures in their classrooms- for us to see. Some accusations seemed highly unlikely, such as Mr. Pfeiffer or Mrs. Kirschman, and the <span style="background-color: transparent !important; background-position: initial initial !important; background-repeat: initial initial !important; border: none !important; display: inline-block !important; float: none !important; font-family: arial,helvetica,sans-serif !important; font-size: 13px !important; font-style: normal !important; font-variant: normal !important; font-weight: normal !important; height: auto !important; line-height: 19.5px !important; margin: 0px !important; min-height: 0px !important; min-width: 0px !important; padding: 0px !important; text-decoration: underline !important; text-indent: 0px !important; vertical-align: baseline !important; width: auto !important;"> collected and analyzed did not produce any evidence to suspect either of them of committing a crime. In conclusion, the evidence points to Mrs. Cravener as the culprit.