Prescribed Book
1. Science	A Text Book for Class X, Published by NCERT
2. Secondary School Science	(Supplementary Textual Material-Class-X) Published by CBSE Vol-1 & Vol-2.
Note:
1. Teachers are advised to consult reference books, if necessary. 2. NCERT has published (in Dec. 1992) the following supplements to above stated science books in order to fill in the gap between the prescribed syllabus and textual contents in the then existing books, related to such topics as Air, Water, Energy and Space Exploration. These two books constitute together a single unit. 1. A supplement to the Science Textbook (Class X) 2. Material for Science (Class X)