Khair Zad application in science for the three grades of the preparatory stage, by Professor/Yousry Sellal.
Mr. Yousry Sellal is the founder of the Nahwa.com network and the owner of the Examine platform.
To contact Mr. Yousry Wassal via WhatsApp:
00201096263877
(Khair Zad) and (Win a Million) applications in various educational materials are all sponsored by Nahwa.com

Fantastic possibilities... and competitions with the highest degree of fun and excitement.
Note that the student is available before the start of the competition:
1 - Select only the branches he desires
2 - Then determine the topics he wants in each branch.
3 - Determine the number of questions for each competition (10 questions / 20 questions).