This book covers all the basic questions a young child may have about the who, what, why, and especially the how of everyday things. Focusing on how things are made, refined, and used by people, this book provides kids with simple, accurate explanations.
Explain and answers to all questions about energy'
Buku ini mengajak anak untuk berpikir tentang diri mereka sendiri dan mengajak mereka untuk belajar dari pengalaman yang sudah terjadi dan akhirnya mengetahui hal yang baik.'
Vitamins and minerals is comprehensive guide to the nutrients necessary for balanced diet and healthy life. the disgetive process is fully explained, as are antioxidan and the immune system. In additon there is an appendixs of the recommended dietary all