کشتی های شناور و قاشق های غرق شده – Sailing Ships and Sinking Spoons Farsi
کشتی های شناور و قاشق های غرق شده – Sailing Ships and Sinking Spoons Farsi – Tenzi and Tashi decide to sail paper boats on the water paths after the rain. They seem to noticed why do boats float? This story has lessons about gravity, buoyancy, density and displacement. An interesting early science book for …
