Check the latest CBSE Class 9 Science Syllabus 2025–26 with unit-wise weightage, exam pattern, internal assessment details, and excluded topics. Download the detailed syllabus in PDF here.

Haryana Board Class 9 Syllabus 2025–26: Get here the detailed information on HBSE Class 9 Science syllabus weightage, course overview and marking scheme, and download PDF.

Atomic Theory: Structure of the Atom: Students use the terms isotope, atomic number, mass number, and atomic mass to determine the number of subatomic particles in an isotope of an element.

One class of catalysts, the single-atom catalysts, makes efficient use of the expensive metal by supporting it as isolated atoms on another cheap material. Until now, the structure of those ...