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CBSE Class 10 Science Important Questions

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CBSE Class 10 Science Important Questions and Answers - FREE PDF Download

Vedantu provides a valuable resource for students preparing for their Class 10 Science exams by offering important questions that align with the CBSE Class 10 Science Syllabus. These questions cover key concepts and topics, helping students focus their studies effectively. Understanding these important questions can enhance comprehension and improve confidence during exams.

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Table of Content
1. CBSE Class 10 Science Important Questions and Answers - FREE PDF Download
2. CBSE Class 10 Science Chapter-wise Important Questions
3. 10 Most Important Questions from Class 10 Science Chapters
4. How do Science Important Questions Class 10 Help you with Exams?
5. Additional Study Materials for Class 10 Science
FAQs


By practising these questions, students can identify their strengths and areas needing improvement. This targeted approach not only helps in better retention of information but also prepares students to understand various types of questions they may encounter in their exams. With Vedantu's support, students can make the most of their study time and achieve their academic goals in Science.


CBSE Class 10 Science Chapter-wise Important Questions

CBSE Class 10 Science Chapter-wise Important Questions and Answers cover topics from all 13 chapters, helping students prepare thoroughly by focusing on key topics for easier revision.


10 Most Important Questions from Class 10 Science Chapters

Below are 10 important questions from Class 10 Science chapters that are important for preparing well and understanding concepts easily.


1. What is the structure of an atom?

The atom consists of a nucleus at the centre, which contains protons and neutrons. Protons are positively charged, while neutrons have no charge. Surrounding the nucleus are electrons, which are negatively charged and move in orbits. The number of protons in the nucleus determines the element, while the number of electrons affects the atom's charge.


2. Explain the process of photosynthesis.

Photosynthesis is how green plants convert sunlight into food. In this process, plants take in carbon dioxide from the air and water from the soil. Using sunlight and chlorophyll, they produce glucose (a type of sugar) and oxygen. This process is crucial for life on Earth as it provides food and oxygen for living organisms.


3. What are acids and bases?

Acids are substances that taste sour and turn blue litmus paper red. They release hydrogen ions in solution. Bases, on the other hand, taste bitter, feel slippery, and turn red litmus paper blue. They release hydroxide ions in solution. Both acids and bases can neutralise each other, forming salt and water.


4. Describe the human respiratory system.

The human respiratory system includes the nose, trachea, bronchi, and lungs. Air enters through the nose, passes down the trachea, and then splits into the bronchi that lead to each lung. Inside the lungs, oxygen is exchanged for carbon dioxide in tiny air sacs called alveoli. This process is essential for supplying oxygen to the blood.


5. What is the law of conservation of mass?

The law of conservation of mass states that mass cannot be created or destroyed in a chemical reaction. This means that the total mass of the reactants before a reaction is equal to the total mass of the products after the reaction. This principle helps in understanding how substances interact and transform during chemical processes.


6. Explain the concept of force and its types.

A force is a push or pull acting on an object that can cause it to move or change its motion. There are two main types of forces: contact forces, which require physical contact (like friction), and non-contact forces, which act at a distance (like gravity). Understanding forces helps explain how objects interact in our daily lives.


7. What are the properties of magnetism?

Magnetism is a property of materials that are attracted to magnets. Magnets have two poles: north and south. Like poles repel each other, while opposite poles attract. Magnetic fields can affect the behaviour of other magnetic materials, and they play a significant role in various applications, like electric motors and generators.


8. Discuss the water cycle.

The water cycle describes how water moves through the environment. It involves processes like evaporation (water turning into vapour), condensation (vapour forming clouds), and precipitation (rain or snow falling back to the ground). This cycle is essential for maintaining the balance of water on Earth and supports all forms of life.


9. What is the significance of the periodic table?

The periodic table organises all known elements based on their atomic number and properties. It helps scientists understand relationships between elements and predict their behaviour in reactions. The table is divided into groups and periods, showcasing trends in properties like reactivity and electronegativity, which are useful for studying chemistry.


10. Explain the concept of renewable and non-renewable resources.

Renewable resources are those that can be replenished naturally, like solar energy, wind energy, and biomass. They are sustainable and have a lower environmental impact. Non-renewable resources, like fossil fuels and minerals, are finite and take millions of years to form. Understanding these resources is vital for promoting sustainable development and conserving the environment.


Here are some key questions for Class 10 Science. For a clearer understanding of each chapter, refer to the Chapter-wise Important Questions table. This table will assist you in understanding the main concepts and preparing effectively for your exams.


How do Science Important Questions Class 10 Help you with Exams?

  • Class 10 Science Important questions highlight the main ideas in each chapter, helping you concentrate on what matters most.

  • By practising these questions, you can clarify difficult concepts and gain a deeper understanding of the subject.

  • Familiarity with important questions can build your confidence, making you feel more prepared on exam day.

  • Working on important questions helps you discover which topics you need to study more, allowing you to improve your overall performance.

  • Important questions often mirror the style and format of exam questions, giving you a taste of what to expect.

  • Practising these questions can help you learn how to manage your time during exams, ensuring you can answer all questions effectively.


Class 10 Science Important Questions from Vedantu are a valuable resource for students. They focus on key concepts, making it easier to study and understand the material. By practising these questions, students can build confidence, identify areas for improvement, and get used to the exam format. This preparation can lead to better performance on exam day, helping students achieve their academic goals. With Vedantu’s support, students can make their study time more effective and successful.


Additional Study Materials for Class 10 Science

FAQs on CBSE Class 10 Science Important Questions

1. Explain the Process of Recycling in Class 10 Science. Give Examples.

When a used item is stored and processed again for making a new item out of it which can be used again as the original item using a suitable process, then this process is called recycling. For example, plastic bottles are used to drink water. After the water is consumed, it will be crushed and stored. All of them are recycled and made again in the form of any other usable form. We will generally use this process to save resources and make the best use of the available resources without wasting them.

2. Name the Characteristics of a person that are not Inherited and Why according to CBSE Class 10 Science?

The characteristics of a person that are not inherited are acquired characteristics. These will be developed in the different stages of life based on multiple experiences in human life. This will not have any effect on the characteristics which are obtained from hereditary. These can't be passed via hereditary as these are due to non-reproductive tissues. So, these traits will be different for every individual in the family and might not be the same. They will sometimes be common if they happen to face the same situation together.

3. What is the curriculum of Class 10 Science?

Following lessons are present in the NCERT book of Class 10 Science:

  • Chapter 1 - Chemical Reactions And equations

  • Chapter 2 - Acids, Bases and Salts

  • Chapter 3 - Metals and Non-metals

  • Chapter 4 - Carbon and Its Compounds

  • Chapter 5 - Life Processes

  • Chapter 6 - Control and Coordination

  • Chapter 7 - How Do Organisms Reproduce?

  • Chapter 8 - Heredity Chapter 9 - Light - Reflection and Refraction

  • Chapter 10 - The Human Eye and the Colourful World

  • Chapter 11 - Electricity 

  • Chapter 12 - Magnetic Effects of Electric Current

  • Chapter 13 - Our Environment

4. Discuss the exam pattern for Class 10 Science.

The Science Board Examination for Class 10 is of 100 marks. These 100 marks are distributed into two parts:

  • 20 marks are allotted to students based on internal assessment.

  • The theory paper is of 80 marks.

The blueprint of the theory paper is as follows:

  • Section A - Very Short Answers (20 questions) (one mark each)

  • Section B - Short Answers I (six questions) (two marks each)

  • Section C - Short Answers II (seven questions) (three marks each)

  • Section D - Long Answers (three questions) (five marks each)

5. How to make an effective study plan for Class 10 Science?

The following tips can help to make an effective study plan for Class 10 Science:

  • Construct a schedule that includes all subjects.

  • Focus on each chapter of Class 10 Science.

  • Prefer the NCERT book for studying every chapter.

  • Clear all your concepts by solving the important questions.

  • Don't take too much stress.

  • Keep your body and mind fit so that you can concentrate on your studies.

  • Make notes for every chapter. These will help you at the time of revision.

6. Why is Vedantu beneficial for studying Class 10 Science?

Here are some benefits of using Vedantu for studying Class 10 science:

  • Students will find all the important study materials for Class 10 Science on Vedantu app and website.

  • The important questions of Class 10 Science are also available on Vedantu.

  • The content is of high quality.

  • All the contents are developed by well-qualified teachers.

  •  Students can clear their queries by using the option of "Let's Chat".

  • The study materials are available in the form of PDF files and can be downloaded free of cost.

7. What is the importance of important questions of Class 10 Science by vedantu?

The importance of the important questions of Class 10 Science is as follows:

  • Students can clear their concepts by solving these important questions.

  • These are the best learning sources at the time of revision.

  • The important questions will give an idea of how to write answers in the proper format.

  • These will assist you in scoring well in the Class 10 Science exam.

  • By practising these, students will understand the chapters easily.

  • This will give you a hint about the type of questions asked in the exam.

8. What are the most important question of science class 10?

Most important topics: Chemical reactions, human body, light, electricity, magnetism, environment.

9. What are Class 10 Science Important Questions?

Class 10 Science Important Questions are carefully selected questions that cover key topics in each chapter. They help students focus on what is most important for their exams. These questions can enhance understanding and serve as a revision tool.

10. How can these questions improve my exam preparation?

Practising these questions allows you to review essential concepts and clarify doubts. They mirror the exam format, so you can get comfortable with the types of questions you might encounter. This practice can boost your confidence and help you perform better.

11. Where can I find these important questions?

You can find Class 10 Science Important Questions on the Vedantu website. They are organised by chapter, making it easy to navigate and study specific topics. This resource is readily available for students to access anytime.

12. Can these questions help me identify weak areas?

Yes, working through these important questions can reveal topics you find challenging. By recognizing these weak areas, you can focus your studies on improving them. This targeted approach can lead to a stronger understanding of the subject.

13. Are these questions suitable for all types of learners?

Absolutely! These important questions are designed to benefit all students, regardless of their learning style. Whether you learn best through reading, writing, or practice, these questions can help reinforce your knowledge and prepare you for exams effectively.