CBSE Class 9 Science Notes Chapter 13 Why do we fall ill?
In this science note, we’ll be covering science revision notes for Class 9 Biology Chapter 13 Notes. This is very important for class 9 students who wish to learn more about health and why we fall ill. Class 9 students should be aware of how health can affect their state of mind and well-being. A healthy individual is not only physically fit but also mentally healthy. The environment in which a person lives has a direct impact on his health. To be healthy, one should take care of his surroundings and keep them clean.
But, most significantly, food is essential for our growth and development, as mentioned in this science chapter of CBSE Class 9 Biology science revision notes.
An introduction to diseases, classification of diseases, types of bacteria, and their role in causing the infection are included in the free revision notes for the Class 9 biology chapter on diseases. CBSE students are encouraged to read all the articles in this category to understand more about Class 9th Science.
- Health And Its Failure
- Disease And Its Causes
- Acute and Chronic Diseases
- Infectious Diseases
- Means Of Spread
- Organ-Specific And Tissue-specific Manifestations
- Principles Of Treatment
- Principles Of Prevention
CBSE Class 9 Science Notes 2023-2024
CBSE Class 9 Science Notes for the academic year 2023-2024 serve as a crucial foundation for students’ further education. To excel in exams, it is critical to fully comprehend each topic while also thoroughly revising the subject matter. As Class 9 is a crucial period for students, w3wiki provides precisely crafted revision notes to help students be productive and well-prepared for their CBSE Class 9 Science Exam. The Class 9 science notes provide information on all of the relevant formulas, graphs, and equations, presented in an easy-to-understand language and manner.
CBSE Class 9 Science chapter notes will help students secure good marks as well as an understanding of the fundamental concepts of Physics, Chemistry, and Biology. Hence, these chapter-wise notes provided by w3wiki gave a crisp and clear explanation of all the important topics mentioned in the updated CBSE Class 9 Science Syllabus. All required formulas, graphs, and equations are provided in the most concise manner possible for easier understanding.
Check these CBSE Notes to learn and revise all the important concepts and their explanations for each topic covered in all chapters quickly. Furthermore, the CBSE Class 9 notes accessible on our website primarily align with the directives of the CBSE and NCERT syllabus. These notes help students as revision notes for the coming board examination.
Table of Content
- Chapter 1 – Matter In Our Surroundings
- Chapter 2 – Is Matter around us Pure
- Chapter 3 – Atoms and Molecules
- Chapter 4 – Structure of the Atom
- Chapter 5 – The Fundamental Unit of Life
- Chapter 6 – Tissues
- Chapter 7 – Diversity in Living Organisms
- Chapter 8 – Motion
- Chapter 9 – Force and Laws of Motion
- Chapter 10 – Gravitation
- Chapter 11 – Work and Energy
- Chapter 12 – Sound
- Chapter 13 – Why do we fall ill?
- Chapter 14 – Natural Resources
- Chapter 15 – Improvement in Food Resources