Molecular model

Can you please help me correcting THE MISTAKES OF ENGLISH in this short lesson of on chemistry?

Know:
 The properties of molecules.
 The three physical states of matter.

Know-how:
 Describe and recognize the three physical states of matter through sentences and diagrams.

I - The properties of molecules

In a molecular model, all matter is seen as a gathering of small objects called molecules. These molecules are considered to possess the following properties:
- They are small (about 0,000 000 001 m that is 1 nanometer)
- Spherical
- Of constant shape
- Indivisible

NB: all molecules have different masses but, when they belong to the same chemical species, their masses are identical. For instance, two molecules of water have the same mass but a molecule of water doesn’t have the same mass as that of than a molecule of ozone.

II - Modeling the three states of matter

Last year, you have learned that matter can exist in three forms, which are called physical states: solid, liquid, and gas.

Exercise n°1 : after reading the descriptions below, link the diagrams of the physical states of matter to the text that best describes each of them.

In solids, molecules are compactly arranged. They don’t move and are strongly linked to each other. Moreover (maybe you mean additionally? "Moreover" implies that you are further clarifying your previous sentence, when it sounds more like you're adding additional information), when solid matter is a crystal, molecules are arranged in lines.
In liquids, molecules are compactly gathered, but they are disordered. They can move freely. 

In gases, molecules are disordered and at a distance from each other. They move very quickly and in all directions.

Exercise n°2: write in the ballons the physical state of matter corresponding to each description.

Penance, a Japanese movie

I watched this movie a month ago. I heard about it a long time ago but it wasn't in the nearest theaters in my city any theaters near me and I didn't want to download the movie illegally. So I watched and waited until I forgot about it. Then in Arte, a French cultural channel, decided to show the two parts of the movie which lasted around four hours.

It's talks about a school girl getting killed by a stranger in the building where we can do people play sports. Before the girl was murdered four of his her friends saw the face of the killer. When the police asked the girls how was to describe the face of the stranger they said that they didn't remember.

After that "life goes on" for these girls until one day, when they went together to deliver a gift to Emili's house on her birthday. give a gift for the birthday of Emili (the one who died) in her house.

During "the party" the mother get got furious and said she's not going to forgive these girls because they can't remember the face of the killer, therefore thus the title "penance".

Then things get serious. We are now fifteen years later The movie cuts to the life of these girls fifteen years later. The movie is cut such that as each chapter represents the life of one girl, there's are four, and on each we see how they are going doing their penance.

It was an intriguing movie with sometimes occassional dark comedy. I highly recommend it if you like thrillers.