الصف :الحادي عشر - العام الدراسي :2015/2016
Once upon a time, and during the Earth's history, a group of reptiles is named "dinosaurs" have ruled the planet. Dinosaurs were the largest terrestrial creatures have ever ruled the Earth but from about sixty-five million years ago the dinosaurs died out, along with over than 50% from other creatures all over the world from unknown causes.
SO ;
1)- What was the cause of that mass extinction ?
2)- How did scientists discover dinosaurs and know about their extinction ?
3)-Why did some species survive and dinosaurs didn’t although they were the strongest creatures during that period ?
I will try to answer those questions in this seminar and I hope it will be an exciting research for you…
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حلقة بحث98The Secret Of Extinction Of The Dinosaurs
