Planet Earth

The mini-encyclopedia "Planet Earth" will tell a young astronomer an exciting story about the birth of our star system and how the cosmos is arranged.

 The book is interesting and useful for children and parents. After all, it describes many amazing facts! 
Does your child know that when it was born, planet Earth was very hot and its surface was bubbling with liquid metals and other elements? What secrets does it hold? What lies hidden in its depths?