الصف الرابع الابتدائي ساينس
ساينس رابعة ابتدائي

لينك تحميل الملزمة
https://drive.google.com/file/d/10TF1xTR6fqVZvizj0gZG2QUZ5I3_v3ge/view?usp=sharing

لينك تليجرام
https://t.me/scimrahmedelbasha

In This Video :
Some changes of landscapes take short time and some others take long time.
Canyon Formation
Canyons are special types of valleys that have steep sides.
- Many valleys including canyons are formed by the same way
• Grand Canyon
• Formation of the Grand Canyon


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