價格：免費
更新日期：2013-11-15
檔案大小：24M
目前版本：1.0
版本需求：Android 2.1 以上版本
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Earth is the only planet of solar system where life exists. There are very interesting facts about our solar system like their distance from the sun, atmosphere if present etc. this book gives a brief description about our solar system.
This book gives an introduction of geology to kids. Questions like how are rocks formed, what is the difference between different types of rocks, How is soil formed and what are its constituents are answered in a very simple manner with beautiful pictures.
Earth, Sun & Moon Our Environment Rocks, Soil, and Minerals Volcanoes, Earthquakes & Tidal Waves
