Robbery on the Orient Express

Fingerprints

for our project , we have studied finger prints. We have seen several fingerprint classes like arches, loops , whorls

  

This picture represents arches. In an arch pattern, the ridges enter from one side, make a rise in the center and exist primarily on the opposite side.
 

 This picture represents loops: 

In a loop pattern, the ridges enter from either side,re-curve, and pass out or bend to pass out side they entered.

The picture represents the whorls

Robbery of Orient express : Blood types

                     

                  
                       Blood Types 

There are four different blood types in the world :
AB-O-B-A
With different negative or positive rhecus (Rh).

To find them we undertook three tests,  one for the A type, one for the B type and the last for the Rh.
We placed a pallet three drops of blood and we searched which type of blood it was.

For example if the blood agglutinated for test A, this blood belonged to A type.
We did the same for the B type and the rhecus.
And if the blood didn't agglutinate in the A and B place, this was O type.

AB+ type

A- type

B- type

O- type

Mathilde and Justine 1STL

Robbery on the Orient Express

White Powder

 A white powder has been used to identify fingerprints during the crime in order to find the murderer.The se eTwinning official was found unconscious in his cabine on the orient express. Some white powder was discovered by the turkish police on his bedside table.
So we are going to carry an experiment thanks to the TLC technique. The solvent used in the chromatography tank is a mixture of cyclohexane /butyl-acetate and methanoic acid.Finally, we used the UV lamp technique to reveal the compounds.
To find the nature of the white powder, we had to compare it with four dry white powder drugs.

-  A : BROMAZEPAM (anxiolytic)
-  B : STILNOX (sleeping pill)
-  C : ADVIL (ibuprofen)
-  D : ASPIRINE (aspirin)

After this experiment, we've concluded that the white powder was a mixture of BROMAZEPAM and STILNOX.

                                                                                                                                       Adrien Angella

                                                                                               Hugo Barada

Iñaki Bisbau

eTwinning project: ROBBERY ON THE ORIENT EXPRESS!

Spanish winner logo

The project we did this year was in collaboration with eTwinning, and here is the story...

"A team of Etwinning teachers was invited to London for a prize winning ceremony organized by eTwinning. Indeed, they have encouraged their students in taking part in a European project and as such they have received a box full of prizes for their students. The teachers have won a free return ticket that is why they all embark on the mythic Orient Express train. However, unfortunately, on their way back, the founding teacher of the project is drugged and robbed of the box containing the students’ prizes… By carrying out a common scientific investigation, students will have to find the names of the robbers and their reasons for robbing the box of students' prizes!"

During this project, we were able to analyse the white powder found at the scene of the accident, as well as drops of blood. We also realized several logos, and we elected the best ones.
Each other country has also done its own logo, and then we have elected the best among each country.
The countries that participated were:
- Spain
- Portugal
- Turkey
- France
 Spain won the logo competition with their logo above.




LUCAS Jade, LANEUSE Krystel     1STL

Hello, my name is Sarah, during this year, I work on a project. This project is to build a drone.
Our problematic is How create a drone by it self ?
We are four in our project, and it was very helpfull because we could help each other and doing pairs to work in different parts.

This is a picture about our drone : 

We call it VSL² because of the four first letter of our name (Vanille, Sarah, Laure et Léa)

We built it with two rulls from the lab and we use motors and engines what we have buy. We also learnt the programmation for control the drone and use an Arduino card (electronic card).

Our drone fly ! We had some problems to do this, but we succeed !

My Project !

Hello, my name is Léa and today I will introduce you my project.
This year with my friends we chose to build our own drone!

We used some lab's materials and we bought the battery or the esc for example to build it. We tried to follow a video about a man who was doing the same thing by itself but we decided to change it a little; We used an Arduino Card to control it instead of using a remote control. We had a lot of problems with the program and the battery but we finally succeed and we made it flies ! We were very happy and relieved.
We had so much fun during this project and we even gave our drone a name : it's called "VSL²" in reference of our initials.

We nearly have finished this project, no
w we have to write the lab's repport.

MY PROJECT ON THE COSMETICS 

Our project is on the organic and industrial lipstick.
We wanted to create a organic lipstick, to show if a organic lipstick is must performant and resistant than the industrial lipstick.
We have to created our organic lipstick for a must environment, and for the healthy of poeple.
During our project, we did of experiences as the spectrométrie, presence of plomb, the difraction.
It's better the natural colorant for a lipstick because he is must resistant.
The report was made by Lucie, and i do the report with lucie on presence of plomb.
After we have all participated in the project.