Group1

Alix/Sephora/Sarah

Observation :

The students have a coin, cups and paper. They put a coin on paper, that they put on glass/ cup.

 

It is necessary to put the coin on the hollow of the glass.

 

They have to pull hard and quickly for the coin grave in the glass.

 

GROUP 2

Aurore/Amélia

In this experiment in can see the materiel used by the students.

They used ice, a plate, water and a candle.

We saw that the levelof water rise almost all at once and pretty much after the flame went out.

May be some of the oxygen was used up.

Group 3

Ranime/Rayan

Equipment :

This experiment is executed with :

- Two papers, one with a drawing different of the second.

- A stick

Observations :

This experiment is using for create cartoons. From a scientific point, this effect is of in the folded paper, the stick folds and unfolds the paper in a repetitive way. Its the cause of this effect. Its like a flipbook.

Explanation : 

This effect is called "optical illusion". This optical illusion is caused by the visual system and characterized by visually perceived images that differ from objective reality.

 

G4

Dany Grimaud

Rayan Doghmane

Houia Abdelaziz

Experiment of the baloon

 

 

 

When the baloon comes near the flame, the rubber becames hot , it explode but when it is filled water, it doesn’t explode.

Because the water absorb the heat, and the rubber became warm.

The water is a great substance for soaking up heat. Our body even use water to control heat for example !