CBSE Academic

The chapter “The Fundamental Unit of Life” in Class 9 Science explains that the cell is the basic structural and functional unit of all living organisms. It discusses the discovery of the cell, different types of cells, and detailed functions of cell organelles such as the nucleus, mitochondria, endoplasmic reticulum, Golgi apparatus, and chloroplasts. The … Read more

The chapter “Structure of Atom” in Class 9 Science explains how atoms are made up of smaller particles like electrons, protons, and neutrons. It also discusses important models of the atom proposed by scientists such as J.J. Thomson, Rutherford, and Bohr, along with concepts like atomic number, mass number, and valency. Structure of Atom Class … Read more

Atoms and Molecules Class 9 Notes, Ancient Indian and Greek philosophers have always wondered about the unknown and unseen form of matter. The idea of divisibility of matter was considered long back in India, around 500 BC. An Indian philosopher Maharishi Kanad, postulated that if we go on dividing matter (padarth), we shall get smaller … Read more

Is Matter Around Us Pure Class 9 Notes – In this chapter, students learn about the concept of pure substances and mixtures, their types, and separation techniques used in everyday life. These notes provide a clear explanation of elements, compounds, and mixtures with examples, along with easy definitions. Matter Around us Pure Class 9 Notes … Read more

Matter in our Surroundings Class 9 Notes – This CBSE note for class 9 science chapter 1 notes provides a summary and revision of the topic “Matter in Our Surroundings.” These notes are helpful resource for class 9 students who want prepare for exams. It is recommended to also refer to NCERT solutions for a better understanding of … Read more