
Fatima zahrae EL MHAMDI
Why did I choose this topic instead of others ?
I've always wondered how scientists know what are the planets and the stars made of? Until I knew about the atomic spectrum and then I filled out the blank of one of my daily curious wonders. Moreover, I figured out, even in this enormous and vast cosmos, every single object has the properties that distinguished it from others. That's why I chose this attractive topic to share with interested people and I tried to explain it in the simplest way that I can.

Fatima zahrae EL MHAMDI
School name : Omar El Khayam
City : Taza, Morocco
Grade : common-core
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سيتم التحقق من جميع الأصوات قبل الاعلان عن المتأهلين للمرحلة الموالية