CSI Milford


Day 1 Report:

Observations

someone took the penguin and left an ominous note in black ink asking for a ransom
Mr.Hood and Mr. Bile are part of an anti penguin association and we have black pens from all our suspects.
Mrs. Cravner is acting like she does not know what happened to the penguin but i think she might be the culprit.

Background Information

its a technique for separating and identifying mixtures that are colored and can be used in secondary and primary uses of ink
http://en.wikipedia.org/wiki/Paper_chromatography
Mixture- A substances mad by mixing other substances together
Solution- A liquid mixture in which the solute is uniformly distributed within the solvent
Paper chromatography- is an analytically method technique used to for separating and and identifying mixtures that are or can be colored especially pigments and can be used with secondary and primary sources of ink
Fractional distillation-separation of a liquid mixture into fractions differing in boiling point (and hence chemical composition) by means of distillation, typically using a fractional column

Inferences or Hypothesis

I think that it might be Mr. Lancos who stole the penguin


Tests Performed

we went to all the culprits rooms and got pens from them

Data

we got 7 pens from 7 different people who we think might be a culprit

Pictures

external image 14191159024_ed43831891.jpg


Conclusions

we don't know who wrote the note but we are guessing suspects


CSI Milford


Day 2 Report:

Observations

When we dip the paper into the alcohol and it reaches the ink it spreads it apart and the ink either turns a blueish purple even know the original color was black.

Background Information

we have many suspects and we are testing their pens using paper chromotography and it spreads the ink apart to see the diffrent colors.


Inferences or Hypothesis

I think it was Mrs. Cravener who wrote the note because she was very clueless


Tests Performed

we are using paper chromotalogy to find out who wrote the note we are testing the ink

Data

all the pens are leaking and the pens are showing many different colors such as brown,purple, green, and blue

Pictures

external image 14034605680_d05bb34abf.jpg


Conclusions

we tested all the pens but not the note yet its looking pretty good

CSI Milford


Day 3 Report:

Observations

-Most of the paper appears to look the same some are purple and black like Mrs. Craveners
-Today we came across a dead penguin on the ground we checked the pulse but it was dead
we don't know who did it but the girls gym teacher might have some answers. All that was near the dead penguin was a cup and a flask with unidentified liquid inside it.



Background Information

- dead penguin found do not know who did it


Inferences or Hypothesis

that the density of the liquid will help us determined the type of the liquid used to take out the penguin



Tests Performed

Density test
mass of empty graduated cylinder- 17.5
cylinder and liquid together- 35.1
mass of liquid is 17.6
D=M/V
density- 0.88 g/mL

Data

total- 0.88 g/mL

Pictures


Conclusions

we got all the data for the liquid but never actually found out what the liquid was we might need to run some more test on the unknown liquid


CSI Milford


Day 4 Report:

Observations

a big heating curve occurred and we are one step closer to finding out the liquid




Background Information

we are testing the mystery liquid
mrs. Cravener has the same kind of paper of that was used to right the ransome note but diffrent type of hand writing


Inferences or Hypothesis

that the heating curve will help us understand who wrote the note




Tests Performed

Heating curve


Data

Time (min)
Temperature (◦C)
Observations
.5 min
23
It started going up a consistent rate of 3
1 min
26

1.5 min
29

2 min
32
the consistent rate ended
2.5 min
36

3 min
43

3.5 min
51
This was a huge jump in the temperature from 51 to 73
4 min
73

4.5 min
78

5 min
79

5.5 min
79

6 min
80
It levels out here for 4 times we took it
6.5 min
80

7 min
80

7.5 min
80

8 min
81
its now increasing at a lower rate
8.5 min
82

9 min
82

9.5 min
82

10 min
83

10.5 min
84

11 min
86

11.5 min
89

12 min
90

12.5 min
90

13 min
92

13.5 min
94

14 min
95

14.5 min
97

15 min
97

15.5 min
97

16 min
98

16.5 min
98
It stopped at 98 degrees
Preview of your graph
Preview of your graph


Pictures

external image 14050344569_d17b6563d8.jpg
external image 14050344569_d17b6563d8.jpg



Conclusions

In conclusion we found out the Mrs. Cravner was the one who did it and Mrs. Laguna called the cops on her and everyone stood in the hallway watching Mrs. Cravener be dragged away and before she left she looked at Mrs. Laguna and said "this is all your fault you set me up" and that was the last we saw of her.