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CBSE Class 8 Science

1.0CBSE Class 8 Science

Physics, Chemistry, and Biology are three cornerstone subjects in CBSE's 8th-class science curriculum that are very important for the scientific learning process. The curriculum for the 8th class is aimed at sharpening students' understanding of fundamental concepts in science and/or igniting in students the insatiable thirst for curiosity about their environment.

The course contains elements related to physics, chemistry, and biology. Foundational concepts are taught in each of these areas that will be quite useful for future science classes. 

This blog will cover topics related to CBSE Class 8 Science, such as the class syllabus, important books, and more, which students must know to score well in Class 8 Science.

2.0CBSE Class 8 Science Syllabus

The CBSE Class 8 syllabus aims to provide students with a profound understanding of mathematical concepts and instil critical thinking skills in them. Instead of focusing on students mastering pre-existing algorithms, the syllabus tries to teach them to understand the basic principles of mathematics. The aim is to make them enjoy the subject and to get them to develop their strategies for solving and posing problems. Mastering the Class 8 Maths syllabus is not solely about being ready for exams. Instead, it is a foundation for excelling in board examinations and developing a solid mathematical mindset. Here's a detailed overview of the CBSE Class 8 Maths syllabus:

The CBSE Class 8 Science syllabus is designed to provide a comprehensive understanding of fundamental scientific concepts across Physics, Chemistry, and Biology. Here is a breakdown of the syllabus:

Chapter 1: Crop Production and Management

1.1 Agricultural Practices

1.2: Basic Practices of Crop Production

1.3: Preparation of Soil

1.4: Sowing

1.5 Adding Manure and Fertilizers

1.6: Irrigation

1.7: Protection from Weeds

1.8: Harvesting

1.9: Storage

1.10: Food from Animals

Chapter 2: Microorganisms: Friend and Foe

2.1 Microorganisms

2.2: Where do Microorganisms Live?

2.3: Microorganisms and Us

2.4: Harmful Microorganisms

2.5: Food Preservation

2.6: Nitrogen Fixation

2.7: Nitrogen cycle

Chapter 3: Coal and Petroleum

5.1 Coal 

5.2: Petroleum

5.3: Natural Gas

5.4: Some Natural Resources are Limited

Chapter 4: Combustion and Flame

6.1 What is Combustion?

6.2: How Do We Control Fire?

6.3Types of Combustion

6.4: Flame

6.5: Structure of a Flame

6.6: What is a Fuel?

6.7: Fuel Efficiency

Chapter 5: Conservation of Plants and Animals

7.1 Deforestation and Its Causes

7.2: Consequences of Deforestation

7.3: Conservation of Forest and Wildlife

7.4: Biosphere Reserve

7.5: Flora and Fauna

7.6: Endemic Species

7.7: Wildlife Sanctuary

7.8: National Park 

7.9: Red Data Book

7.10: Migration

7.11: Recycling of Paper

7.12: Reforestation

Chapter 6: Reproduction in Animals

9.1 Modes of Reproduction

9.2: Sexual Reproduction

9.3: Asexual Reproduction

Chapter 7: Reaching the Age of Adolescence

10.1 Adolescence and Pubert

10.2 Changes at Pybert Increases Height

10.3 Secondary Sexual Characters

10.4 Roles of Hormones in Initiating Reproductive Function

10.5 Reproductive Phase of Life in Humans

10.6 How is the Sex Of The Baby Determined?  

10.7 Jormones Other than Sex Hormones

10.8 Role of Hormones in Completing The Life History of Insects and Frogs

10.9 Reproductive Health

Chapter 8: Force and Pressure 

11.1 Force - A Push or a Pull

11.2 Forces Are Due To An Interaction

11.3 Exploring Forces

11.4 A Force Can Change the State of Motion 

11.5 Force Can Change the Shape of an Object

11.6 Contact Forces Muscular Force

11.7 Non-contact forces, Magnetic Forces

11.8 Pressure

11.9 Pressure Exerted by Liquids and Gases

11.10 Atmospheric Pressure

Chapter 9: Friction

12.1 Force of Friction

12.2 Factors Affecting Friction

12.3 Friction: A Necessary Evil

12.4 Increasing and Reducing Friction

12.5 Wheels Reduce Friction

12.6 Fluid Friction

Chapter 10: Sound

13.1 Sound Is Produced by a Vibrating Body

13.2 The Sound Produced by Humans

13.3 Sound Needs a Medium for Propagation

13.4 We Hear Sound Through Our Ears

13.5 Amplitude, Perios and Frequency of a Vibration

13.6 Audible and Inaudible Sounds

13.7 Noise and Music

13.8 Noise Pollution  

Chapter 11: Chemical Effects of Electric Current

14.1 Do Liquids Conduct Electricity?

14.2 Chemical Effects of Electric Current

14.3 Electroplating

Chapter 12: Some Natural Phenomena

15.1 Lightning

15.2 Charging by Rubbing

15.3 Types of Charge and Their Interaction

15.4 Transfer of Charge

15.5 The Story of Lightning

15.6 Lightning Safety

15.7 Earthquakes

Chapter 13: Light

16.1 What Makes Things Visible

16.2 Laws of Reflection

16.3 Regular and Diffused Reflection

16.4 Reflected Light Can Be Reflected Again

16.5 Multiple Images

16.6 Sunlight - White or Coloured?

16.7 What Is Inside Our Eyes

16.8 Care of the Eyes

16.9 Visually Impaired Persons Can Read and Write

16.10 What is the Braille System?

3.0CBSE Class 8 Science Books

The CBSE Class 8 Science books are carefully designed based on the syllabus and help students understand science thoroughly. Moreover, these books include all the essential chapters of Physics, Chemistry, and Biology, with lucid and comprehensive explanations that facilitate students' understanding of key ideas. Focusing on these core subjects aims to develop students' critical thinking abilities, analytical skills, and a strong base in the concepts of science to help them learn in subsequent levels.

1. NCERT Textbook for Class 8 Science

CBSE Class 8 Science books in the curriculum have been specially prepared to support students in developing a good understanding of science. It covers all the important topics of Physics, Chemistry, and Biology while providing clear explanations and interesting content that support students in understanding the core concepts of each discipline. By focusing on the disciplines of these subjects, the books aim to enhance the students' ability to think critically, and analytically, and to help them build a solid foundation in science to prepare them for the sciences in upper grades.

2. Additional Reference Books

These books enhance the academic experience for students, by giving a range of questions, particularly advanced-level questions, that encourage students to utilize concepts and deepen their understanding of the course materials. Here are some additional reference resources students can practice with: 

  1. Lakhmir Singh
  2. S. Chand

4.0CBSE Class 8 Science Mock Tests

CBSE Class 8 Science mock tests are customized to fit each student's strengths and weaknesses and are the most effective way to measure exam preparedness in the subjects. After each mock test, students can learn from their mistakes, work on them, and avoid repeating the same mistakes in the final exam.

Mock tests that are followed by the practice encouraged students to develop time management skills which were applied during the real exam. By getting mock tests regularly, you will be able to follow up on your improvement and keep improving at all times. Improve your performance with ALLEN’s Mock Test designed by by some of India's top expert faculties.

5.0CBSE Class 8 Science Preparation Tips

1. Understanding the Syllabus: Before diving into your studies, it is critical to gain full knowledge of the entire curriculum to avoid overlooking any topics. When you have understood what is required, the best plan is to divide the syllabus into smaller manageable parts. In this way, on the one hand, you can pay attention to the section at a time; on the other hand, you can organize better your study sessions, set realistic goals, and be sure that all topics are covered.

2. Regular revision: To keep information in your mind and make it solid, you need to revise it periodically. Another way is to test yourself on a topic without using the book or notes. Memory is enhanced through this active recall exercise, and areas that require more attention are identified. On top of that, flashcards can be used for reviewing the main ideas, definitions and terms in the course work. By constantly going through these flashcards, one might be able to easily remember what was contained in them keeping the information fresh in one’s mind hence making it easier to retrieve during exams.

3. Practice Regularly: If you want to excel in your examinations, regular practice is very essential. One of the strategies is executing mock tests, this can be an evaluation of personal preparation; hence, one can see where some improvements may be needed. When practising, focus on finishing the questions within the time frame to improve your speed and accuracy. 

4. Ask for Doubts: If you are having any doubts or questions while studying, never hesitate to ask for help. Ask your teacher or classmates who can help you understand the problem topics. Learning among one another's classmates helps because the discussion of the concepts confers understanding over and over again, with new insights.

5. Stay Healthy and Focused: Among the most important prerequisites for studying well are health and focus. Therefore, one should get adequate sleep at night to help the mind remain alert and the focus sharp. Wholesome nutrition will help retain one's energy levels throughout the day so that one may focus easily while studying. Breaking up your study sessions by taking small breaks is equally important. 

Frequently Asked Questions:

The CBSE Class 8 Science Examination comprises multiple-choice questions, short-answer questions, and long-answer questions. The paper assesses the students' conceptual knowledge and parameters like knowledge application and problem-solving.

Practical work in science forms an intrinsic part, this enables students to put theoretical knowledge into practice, develop scientific inquiry skills, and gain hands-on experience with experiments. Practical activities deepen understanding and enhance problem-solving ability.

In solving numerical problems in Class 8 Science, you should start by carefully reading the problem and identifying the key information given in the problem. Note down the relevant formulae and solve the problem in a stepwise manner, showing all your steps.

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