Maddie+CSI

toc =__CSI Milford__=

=Day 1 Report:=

Observations
Mr.Hood had a huge smart board picture of a penguin with an X over it, showing that he doesn't like Mrs.Laguna's penguin. He also had a thumb's down in the picture! Mr. Beil also had a picture of a pengui n with an X over it hanging up in his room, and he founded the anti-penguin program. Coincidence? I think not.

Background Information
Many of the suspects were near Mr.Laguna's room at some point in time this morning when the penguin was stolen.

Inferences or Hypothesis
I think that the penguin must have been taken by a female, since the ransom note was clearly not a guys' handwriting. It could also be a student, since no teacher or staff member would really have a need for Mrs.Laguna's tickets. The more tickets a student has, the more chances he/she would ge t to win food! teenagers, especially teenage girls, love food so it all makes sense. Using the paper chromatography method, we can match the colors of ink from the written note, and the pen of each suspect. This way, we can narrow down our choices.

Tests Performed
We used the paper chromatography method for each supects' pen.

Data
Beil's pen ink tuned light green then blue, Laguna's pen stayed dark colors-mostly black and dark green, Lancos' pen started off purple, then turned pink, and then into a dark green. Mrs.Rhoades' pen was very similar to Lancos' pen. Mrs.Kirschman's pen stayed the same! It didn't fade at all. Hood's however, stayed black and dark blue, but then faded into a dark-ish turquoise. Mrs. Cravener's pen faded from brown to a darkish/turquoise color. The only pens that were similar, were Mrs.Rhoades' and Mr.Lancos'.

Pictures
https://www.flickr.com/photos/mrslagunasclass/14191159024/in/set-72157644273155878/ https://www.flickr.com/photos/mrslagunasclass/14187866411/in/set-72157644273155878/ **Conclusions** We did not test the ink on the note yet, so there is no way to know who the kidnapper is! Everyone seemed pretty suspicious.

=Day 2 Report:=

Observations
The liquid is clear, and does not seem to be very dense. It kind of smells like vinegar!

Background Information
We are testing the density of the liquid that was found at the penguin crime scene. We believe that this liquid was used to poison the penguin, so it must be dangerous.

Inferences or Hypothesis
We believe that the liquid may be semi-acidic because it was used to poison the poor penguin! It smells like vinegar so it would be easily accessible by many of the teachers and students. However, Mrs. Cravener is our top suspect because her pen ink matched the ransom note ink... It could be anyone!

Tests Performed
Density test

Data
The density of the liquid is 0.88 grams. The volume of the graduated cylindar is 10 ml.

Pictures
https://www.flickr.com/photos/mrslagunasclass/14050344569/

Conclusions
We can completely eliminate Mrs.Kirschman because her pen ink did we not even run. Mrs. Rhoades and Mr. Lancos are still in the running because the colors in their pens are pretty close to those in the ransom note! At least can take out one pen! =Day 3 Report:=

Observations
When we first started heating up the mystery liquid, it stayed clear and still, with occasional tiny bubbles. Later throughout the experiment however, the mystery liquid started to bubble rapidly, and turned a murky yellowish color.

Background Information
We don't have any idea what the liquid is!

Inferences or Hypothesis
I think that the mystery liquid could possibly be water because it was completely odorless, and had about the same boiling point and density as pure water.

Tests Performed
Heating curve

Data
The temperature started off at around 20 degrees and ended at 99 degrees! It started boiling at about 40 degrees.

Pictures
=Conclusions= I think it is Mrs. Cravener! her ink was the closest to the ransom note =Day 4 Report:=

Observations
Out of the three test tubes of liquid that we collected, not one changed color or developed a new scent.

Background Information
The type of liquid is a mystery, but it was used to poison the penguin!

Inferences or Hypothesis
I think that the liquid must be water since it is completely odorless and colorless. It also heated up at about and started to boil at about the same rate as pure water would.

Tests Performed
Fractional Distillation

Data
The most liquid was collected in test tube B, and the amount of liquid collected in test tubes A and C was about the same

Conclusions
Mrs. Rhoades, Mr.Beil, and Mr.Hood have all been out of sight for the past week! There's no way that they could have a large part of this if they haven't been anywhere near room 1... That leaves Mrs.Cravener, my top suspect. =Day 5 Report:=

Observations
All of the liquids were clear

Background Information
We do not know what the liquid is!

Inferences or Hypothesis
We heated test tube A the longest when doing the heating curve lab, so maybe it formed some type of gas or another substance in the previous mystery substance, causing test tube A liquid to be flammable.

Tests Performed
Flammability and Density test

Data
The liquid in test tube A was flammable, and the liquids in test tubes B and C were not flammable

Pictures
=WHO DID IT?= The killer of the poor innocent penguin is obviously Mrs. Cravener! I suspected her from the moment we began this lab, but she planted different clues all around Milford to make it seem like it was some other teacher. Really, Mrs. Cravener is the only one who would have enough guts and sneakiness to steal the penguin right out of Mrs. Laguna's room. The way that she tried to trick us by writing a "reminder" note was clever, but she failed. We caught her! With our fabulous science skills and superficial paper chromatography tests, she didn't stand a chance from the moment she swiped the poor penguin from Mrs. Laguna's room.