CBSE Revision Notes

CBSE Notes for Sound Class 9 Extra Questions

Extra Questions with solutions for CBSE Class 9 Science Chapter 12 – Sound prepared by expert Science teachers from latest edition of CBSE(NCERT) books. Please refer Sound Class 9 Extra Questions for more information.

CBSE Notes for Work, Power And Energy Class 9 Extra Questions

Extra Questions with solutions for CBSE Class 9 Science Chapter 11 – Work and Energy prepared by expert Science teachers from latest edition of CBSE(NCERT) books.  Please refer Work, Power And Energy Class 9 Extra Questions for more information.

CBSE Notes for Gravitation Class 9 Extra Questions

Every object in the universe attracts another object by a force of attraction which is directly proportional to the product of masses of the objects and inversely proportional to the square of the distance between them. Please refer Gravitation Class 9 Extra Questions for more information.

CBSE Notes for Force and Laws of Motion Class 9 Extra Questions

CBSE Class 9th Science chapter, Force and Laws of Motion: Important Questions & Preparation Tips. This will provide you with a very clear idea about what type of questions are being framed for the exam and from which topics. The pattern in which the question paper is set is quite different from the style in which the course structure is actually defined. Consider the below mentioned terms/questions at the time of preparation. Please refer Force and Laws of Motion Class 9 Extra Questions for more information.

CBSE Notes for Motion Class 9 Extra Questions

In this article you will get CBSE Class 9 Science chapter, Motion: Important Questions & Preparation Tips for Semester Assessments – I 2017. All the questions have been prepared to cover most of the important topics included in chapter- Motion. Moreover the preparation tips mentioned in this article will make your preparation for exams easy and organised. Please refer Motion Class 9 Extra Questions for more information.

CBSE Notes for Diversity in Living Organisms Class 9 Extra Questions

Extra Questions with solutions for CBSE Class 9 Science Chapter 7 – Diversity in Living Organisms prepared by expert Science teachers from latest edition of CBSE(NCERT) books. You can also Download Diversity in Living Organisms Class 9 Extra Questions to help you to revise complete Syllabus and score more marks in your examinations.

CBSE Notes for Tissues Class 9 Extra Questions

• A group of cells that have similar shape and function are known as tissues. Multiple tissues form an organ.
• There are four basic types of tissues
  • Epithelial Tissue- formed by cells that cover the external part of the body organs.
  • Connective Tissue – these give shape to the organs and holds them in place.
    • fibrous connective tissue,
    • fluid connective tissue,
    • skeletal connective tissue. Please refer Tissues Class 9 Extra Questions for more information.

CBSE Notes for The Fundamental Unit of Life Class 9 Extra Questions

• Cell Theory states that all living organisms are made up of cells.
• A cell is the structural and the functional unit of life.
• It was discovered by Robert Hooke.
• There are unicellular organisms and there are multicellular organisms.
• There are prokaryotic cells and eukaryotic cells. The first is devoid of the nucleus and the second has it. Please refer The Fundamental Unit of Life Class 9 Extra Questions for more information.

CBSE Notes for Structure of the Atom Class 9 Extra Questions

• There are three fundamental particles of an atom. The proton, electron and neutron.
• The Electron was discovered by J.J. Thomson by conducting a cathode ray experiment.
• Proton was discovered by Ernest Goldstein by the Canal Rays experiment.
• Neutron was discovered by J. Chadwick. Please refer Structure of the Atom Class 9 Extra Questions for more information.

CBSE Notes for Atoms and Molecules Class 9 Extra Questions

• The process of combining two or more elements to form new compounds is governed by the laws of chemical combination, they are of two types
  • Law of conservation of mass
  • Law of constant proportion
• Dalton’s atomic theory states that all matter is composed of small particles called atoms. Please refer Atoms and Molecules Class 9 Extra Questions for more information.