CBSE Class 9 Science Practical Syllabus ... Identification of Parenchyma, Collenchyma and Sclerenchyma tissues in plants, striped, smooth and cardiac muscle fibers and nerve cells in animals ...
Below are given main topics covered in class 9 Science chapter 4, Structure of the Atom: → Thomson’s model of an atom → Rutherford’s model of an atom and its limitations → Bohr’s model ...