Will+CSI

=__CSI Milford__=

=Day 1 Report:=

Observations
Mrs. Laguna's penguin is missing and a ransomer note was found in black writing.

Background Information
http://www.chemguide.co.uk/analysis/chromatography/paper.html Chromatography is used to separate mixtures of substances into their components Has a stationary and mobile phase The mobile phase flows through the stationary phase and carries the components of the mixture with it.

Inferences or Hypothesis
I think Mr. Beil is the one who has the penguin.

Tests Performed
none

Data
Collected pens from Mr Beil, Mr. Hood, Mrs. Laguna, Mrs. Craverner, Mrs. Rhodes, Mr. Lancos, Mrs. Kirshman, and also took pictures of penguins and a circle with a crossed out sign over them.

Conclusions
A penguin has gone missing from Mrs. Laguna's class room and most of the men teachers are putting up signs against penguins. Mrs. Craverner claims she has nothing to do with it.

=Day 2 Report:=

Observations
Mrs. Craverner's, Laguna's and Rhodes' pen all changed along with Mr. Beil's, Lancos', and Hood's pens all changed too. Mr. Lancos and Mrs. Rhodes' pens had all the same results along with Mrs. Craverner's and Mr. Hood's pens. Mrs. Laguna's, Mr. Beil's, and Mrs. Kirshmans pen are all different from the rest.

Inferences or Hypothesis
Two sets of teacher used close to the same pens and three other teachers used completely different pens. I think one of the three different pens are the culprit.

Test Preformed
Paper chromatography

Data
collected information on pens from teachers by chromatography test

Conclusions
The results from the paper chromatography test is helping narrow down the person who stole the penguin from Mrs. Laguna's room.

=Day 3 Report:=

Observations
Graduated Cylinder: 17.2 g, Graduated Cylinder with Liquid: 31.5 g, 31.5-17.2= 14.3 g, 14.3/15=.95

Tests Preformed
Density Test

Inferences or Hypothesis
The pen is going to be around 0.95 units.

Data
The density test showed the weight of the density of the pen, which could give us more clues on who stole the penguin.

Conclusions
The density test has helped narrow the person down a little more, the penguin thief will be captured.

=Day 4 Report:=

Observations
The temperature increased at a stead rate then took of unitl around 82 degrees celseus then increased at a steady rate until 99 where it evened off again.

Test Preformed
Heating Curve

Inferences or Hypothesis
People are saying Mrs. Craverner stole the penguin. I agree because usually the person that claims they had nothing to do with it usually did it.

Data
More evidence was found in Mrs. Craverner's room and we brought her note and pen in to be tested. The results were exactly the same after a paper chromatography test. The unknown liquid that we tested was a solution.

Conclusion
After the heating curve, we found that the culprit was Mrs. Craverner as her pen was the only one that matched both ransome notes. Also, on Friday when she came back from outdoor school, she admited to stealing the penguin.