
Le fer (sciences et technologie) 2.1
Authored by Nour Frikha
Science
7th - 8th Grade
Used 7+ times

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15 questions
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1.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Qu’est-ce qu’un alliage ferreux ?
Un alliage dont le principal constituant est le fer.
Un alliage de matériel constitué de fer.
Un alliage de beaucoup d’atomes de fer.
2.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Quelle est la température de fusion et la température d'ébullition du fer?
- Température de fusion: 1059°C
- Température d'ébullition: 2556°C
- Température de fusion: 1290°C
- Température d'ébullition: 1900°C
- Température de fusion: 1535°C
- Température d'ébullition: 2750°C
3.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
L’atome possède:
12 protons
29 électrons
44 neutrons
26 protons
26 électrons
30 neutrons
19 protons
59 électrons
39 neutrons
4.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Que ce passe-t-il quand le fer entre en contact avec de l’air l’humide?
Le fer se transforme en rouille de couleur rougeâtre.
Le fer change seulement de couleur.
Le fer s’évapore.
5.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Quelle est la densité du fer?
6,5
7,6
7,1
6.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Quel est le numéro atomique fer ?
26
21
24
7.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Le fer est-il essentiel dans notre alimentation ?
Oui
Non
Peut-être
Je ne sais pas
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