CSI Milford


Day 1 Report:

Observations:

Mr Nick Hood is a main suspect so is Mr Cory Beil.
https://www.flickr.com/photos/mrslagunasclass/14168285676/in/photostream/


Background Information:

Paper chromatography is the analytical method technique for seperating and identifying mixtures that are or can be coloured, especially pigments.

Inferences or Hypothesis

The person who has the same ink on the note as in the pen will be the thief

Tests Performed:

Chromatography test

Data


Conclusions:

There is no clear sign as to which person stole the penguin. There are some close but none are exact.






SI Milford


Day 2 Report:

Observations:

Penguin was found in front lobby with a mysterious chemical in a beaker. We will now find the density of the liquid so we can identify it.



Background Information:

The density test has been used many times to discover the identity of various unknown substances. We are hoping we can identify this mysterious substance.

Inferences or Hypothesis:

Prime suspect is Mrs Rhoades and the density of the liquid will allow us to hopefully find out who the killer is.

Tests Performed:

Density test

Data:

Graduated Cylinder:17.5g before and 27g after the liquid was added
Density was .88

Pictures

https://www.flickr.com/photos/mrslagunasclass/sets/72157644273155878/

Conclusions:

The substance may soon be identified which will then lead us to the identity of the kidnapper.



Day 3 Report:

Observations:

The liquid reached a boling point and the temperature steadied out. Then it increased again and steadied out once again.


Background Information:

More than one plateu means the liquid is many liquids or a solution. When there is a plateu that means the liquid has reached its boiling point.

Inferences or Hypothesis:

The liquid will be a solution of many substances.

Tests Performed:

Heating curve test

Data:

https://docs.google.com/a/qcsd.k12.pa.us/file/d/0B6VYgaudzETdd2FyUDlQSlNRNFU/edit

Pictures

Colins Heating Curve Unknown Liquid.jpg




Conclusions:





Day 4 Report:

Im Ugly

Observations:

Another note was collected from Mrs. Cravener, it seems to match the pen from the ransom note the best


Background Information:

If there are two separate boiling points that means that the liquid is two different liquids.



Inferences or Hypothesis:

There will be two different liquids who will be identified by their density and boiling points.


Tests Performed:

Fractional distillation


Data:


Fraction
Flammability Test
Density Test
1 a
yes
0.7g/ml
2 b
no
0.8g/ml
3 c
no
0.9g/ml



Pictures:




Conclusions:

There are 2 different substances combined into one. So, the chemical found is not one single substance but it is two seperate substances.



Who done it.

I believe that the culprit of this was Mrs. Laguna. She could be the one to steal it and no one would think it was her. Simply because it was her penguin. It would be a genius idea.