The secret frictional valley

Written by Prince Kumar Singh

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             scientific worldRiya loved science more than anything else in the world. While her classmates enjoyed drawing or playing games, she enjoyed reading her science book again and again....

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Prince Kumar SinghOm is a student of Class 7A at GD Goenka Public School Purnia. He has a strong interest in science, technology, and creative learning. He enjoys exploring scientific concepts and presenting them through interesting stories and projects. His hobbies i

Very good book written by prince Singh I liked it

Prince Kumar SinghWed, Jun 3rd 2026, 2:38 PM