CBSE Class 9 Science Revision Notes Chapter Wise

Science revision notes are very helpful for CBSE Students. CBSE has made the syllabus tough for class 9 students. A year before board exams, many students find themselves struggling with topics they were never taught or tested on. Now, they can use CBSE Science revision notes to make their preparation easier.

Class 9 revision notes are the only way out to save CBSE students from getting disappointed in the Science exam. CBSE pre-board exams revision notes will go a long way in revising all topics with scope for CBSE 9th class students to check their preparation level and topics they need to focus more on.

A 9th-grade student should think of CBSE science revision notes as their bible during CBSE examination preparation. CBSE 9th class revision notes will tell you which topics are more important and which can be left out while doing exam preparation.

AskIITians experts offer free revision notes on the following topics:

1. Matter in our surroundings: This chapter talks about constituents of matter, five states of matter, the effect of temperature on the matter, plasma, Bose-Einstein Condensate (BEC), and important measurement units. While studying CBSE 9 revision notes for this chapter, students should also practice free online quizzes for this chapter.
2. Is Matter around us Pure: In this chapter, we learn about pure and impure substances, heterogeneous and homogeneous mixtures, different types of solutions and alloys, concentration, suspension, types of colloids, and more. In these online revision notes, you will find a concise summary of the chapter as well as an adequate number of examples and diagrams wherever required.
3. Atoms and Molecules: This chapter includes free online notes on Introduction to Atom, Atomic Structure, Rutherford's Experiment, Bohr Model of Atom, Hydrogen atom in different energy levels, Quantum Numbers, and its types. The free revision notes for this chapter will help you cover all important topics required for CBSE 9th class exams.
4. Structure of the Atom: Online revision notes on this chapter talks about an introduction to the constituents of a nucleus, isotopes of elements, atomic number, mass number, and nuclear reactions. To grasp these concepts well, students are advised to use free online notes and take an online quiz on this chapter - available only at askIITians.
5. The Fundamental Unit of Life: Class 9 revision notes on this topic include an introduction to prokaryotic cells, size of prokaryotic cells, movement of the cell, cell adhesion, and types of bacteria (gram-positive and gram-negative). CBSE students must complete revision of Class 9 biology notes using revision cards and take an online quiz for this chapter.
6. Tissues: These revision notes for the Class 9 biology chapter will help you get to focus on the different types of cells, tissues, and organs. With revision questions and simple language, these free revision notes are more effective than CBSE books.
7. Diversity in Living Organisms: Class 9 science revision notes on this topic will give you all facts about evolution, Hardy-Weinberg law, natural selection, human evolution, and more. Class 9 biology notes free download is available to help you understand complex concepts in simple language.
8. Motion: Class 9 science notes on Motion will help you revise the basics of kinematics, Newton's laws of motion, uniform circular motion, centripetal force, and important topics in dynamics. Class 9 notes can also help you check your preparation level for CBSE exams.
9. Force and Laws of Motion: CBSE revision notes on this topic include important ideas of force, gravitational field, and Newton's law of motion in detail. CBSE 9th class students can also check free online quizzes and practice exercises at askIITians to test their preparation level on this topic.
10. Gravitation: This chapter of CBSE 9th class science revision notes will help you revise topics like Mass and weight, Gravitational field, Earth's gravity, and Newton's law of gravitation. Apart from free online notes on this topic, students can also practice exercises and take online quizzes available at askIITians to assess their level of preparation for examinations.
11. Work and Energy: The revision notes for this topic will help you revise concepts like Work done by a constant force, Gravitational potential energy, Kinetic energy, Elastic potential energy, and more. With the help of online class 9 science revision notes, students can also enhance their preparation level with free quizzes available at askIITians.
12. Sound: Class 9 Science free online notes on sound will help you to revise topics like Speed of sound in various mediums, Pitch and frequency, Intensity of sound, Decibel Scale, etc. To prepare this topic, experts advise students to practice plenty of online questions.
13. Why do we fall ill: Free revision notes for the Class 9 biology chapter on diseases include an introduction to diseases, classification of diseases, types of microbes, and their role in causing infection. CBSE students are advised to ask any questions on askIITians discussion forums for this topic.
14. Natural Resources: Science notes for this chapter will help you revise important concepts related to natural resources like renewable and non-renewable, common problems related to natural resources, and their impact on the environment. Using free online notes available at askIITians can save your exam preparation time.
15. Improvement in Food Resources: CBSE revision notes for this topic in class 9 is available to help you revise main topics like Water resources, Food chains, Conservation of mass and energy. These notes for Class 9 biology will help you in preparation for school examinations as well as competitive examinations like NEET.

Why askIITians Science revision notes for Class 9 students are the best?

Our revision notes are:

• Concise: Revision notes by experts at askIITians are simple and concise. Each chapter of Science is summarized. The notes focus on important concepts and ideas. Yet, they are complete.
• Structured: Revision notes are well structured. Each chapter has two parts. The first part summarizes the complete syllabus of Class 9 Science. The second part includes important formulas, equations, and formulae to help students prepare for exams effectively.
• Organized: Revision notes on Class 9 Science are well organized. They follow a step-by-step approach to teach important concepts and ideas of each chapter. This way, students can learn quickly with maximum retention.
• Easy to Understand: Revision notes are written by experts in simple English for easy understanding of complicated topics in Science. Students can understand key concepts with the help of effective diagrams, figures, and tables.
• Comprehensive: Revision notes are comprehensive to cover all topics in Class 9 Science together. They include all important points that students should know for exams like CBSE or ICSE. At the same time, they don't burden students with unnecessary information.
• Printable: Revision notes can be downloaded as PDF files and students can print these for easy preparation. They are customizable and students can add important points to their personal textbooks.
• Instant Access: Revision notes on Class 9 Science are made available to students instantly. They don't require any registration or login process. Students who register at askIITians get free access to revision notes and other study material available on this website. They can access these anytime, anywhere from any device.

The premium version of our study material for CBSE Class 9 students includes:

• The study material for each chapter of the syllabus includes study notes, revision slides, and videos.
• Detailed solutions to all exercises in the book.
• High-quality images with important points highlighted in them.
• Free online tests on every chapter for practice.
• Answers to Self-Assessment Questions at the end of each chapter based on the latest CBSE syllabus.
• Downloadable diagrams and figures for easy understanding of tough topics.
• Tips on time management, study habits, and learning skills.
• The subject-wise study material for Class 9 students.
• Time-saving test papers that come with detailed explanations to help you score well in exams even if you haven't revised the topic. Our test papers can be taken as mock tests and will help you assess your preparation level.

We offer the best study material for students because we regularly conduct surveys among our students to understand their problems and difficulties faced while preparing for school exams. Based on these inputs, we constantly work towards improving our notes and test papers. We also ensure that our exam preparation material is updated to the latest exam pattern of all major examinations like CBSE, ICSE, and State Boards.

Best Strategies to Use Online Revision Notes for Science for Class 9 Students

Highly qualified experts at askIITians prepare revision notes for Class 6, 7, 8, 9, 10, 11, and 12 students. These notes are prepared in such a way that students can easily revise their lessons and enhance their understanding of topics. You can use them for:

• Computer-Based Study (CBS): With the help of online class 9 science revision notes, you can make your own notes for quick reference. This method is more effective than writing down by yourself and makes study time efficient and productive.
• Printable Study Material (PSM): You can print the notes for Class 9 science and use them as study material free of cost. Use this method to revise your notes while traveling or commuting between school and home.
• Self-Study: Using CBSE class 9 science revision notes is easy yet it makes your study time more effective. Moreover, you can revise lessons anytime you want without depending on any external source to prepare for examinations.

Experts suggest that the best strategy to revise your chapters is to prepare notes for topics you find more difficult. You can prepare notes by highlighting or underlining important points and preparing summaries. The Cornell Method of Notetaking is an excellent way to help students note key terms, summarize the content, ask questions, and think metacognitively.

Our experts also suggest that once you have studied revision notes well, ask any questions you have in our discussion forums. You should also try to rewrite them on your own without seeing them.

You can write them in abbreviated form and only include key phrases and things to act as cue cards. These self-written notes can help you refresh your memory while learning. In case you can't remember something at all, you can always go back to the original revision notes we have provided here.