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Class 7 Science Chapter 4 NCERT Solutions: The World of Metals and Non-metals

Q: 1. What is the easiest way to master stepwise answers for Class 7 Science Chapter 4: The World of Metals and Non-metals?

The easiest way to master stepwise answers for Class 7 Science Chapter 4: The World of Metals and Non-metals is to follow NCERT Solutions that provide clear, stepwise explanations.- Study all exercise-wise and intext solutions- Practice writing each answer in steps, using key definitions and diagrams where needed- Refer to exam-ready PDFs for revision- Use key terms and highlight important points in your answers- Check marking scheme to align your writing style with CBSE patterns

Q: 2. What is the difference between metals and non-metals for class 7?

The main difference between metals and non-metals is based on their physical and chemical properties:- Metals: Generally shiny, good conductors of heat and electricity, malleable, ductile, and sonorous (e.g., iron, copper, aluminium).- Non-metals: Usually dull, poor conductors, brittle, non-sonorous (e.g., oxygen, sulphur, carbon).- Metals form positive ions, while non-metals often form negative ions.- These properties help in classifying elements for various uses in daily life and industry.

Q: 3. How to write stepwise NCERT answers?

To write stepwise NCERT answers and score full marks:- Read the question carefully and understand what is asked- Start each answer with a direct statement or definition- Break down the explanation into numbered or bulleted steps- Include examples, diagrams, and definitions where needed- Highlight key terms relevant to the topic- Keep your handwriting neat and structure your answer logically, as per the CBSE marking scheme

Q: 4. Are diagrams required in class 7 science exams?

Diagrams are often required in Class 7 Science exams, especially in chapters involving concepts like the world of metals and non-metals.- Where the textbook or question asks for a diagram, include it neatly- Label all parts clearly and according to the NCERT style- Diagrams can fetch additional marks and help illustrate your answer- Use a pencil for diagrams and keep labelling on the right side if possible

Q: 5. How to present long answers to match CBSE marking?

To present long answers matching CBSE marking:- Begin with a short introduction defining the topic- Break the answer into logical paragraphs or steps- Use headings, numbered points, or bullet lists for clarity- Add important diagrams or examples if relevant- Highlight keywords and definitions- Conclude with a summary or key takeaway point- Stick to word limits and structure recommended by CBSE

Q: 6. Where can I download the chapter’s solutions PDF?

You can download the Class 7 Science Chapter 4: The World of Metals and Non-metals solutions PDF for free from trusted educational websites that provide NCERT Solutions for CBSE students.- Look for links offering free, chapterwise downloadable PDFs- Ensure the solutions are updated for the academic year 2025–26- Download the PDF to use for offline revision and quick exam preparation

Q: 7. Are NCERT Solutions enough for Class 7 Science exams?

Yes, NCERT Solutions are generally enough for Class 7 Science exams for CBSE.- Solutions are based strictly on the latest NCERT textbook syllabus- They cover stepwise answers, key definitions, and diagrams matching the exam pattern- For best results, practice solved examples and attempt extra questions from NCERT Exemplar and previous papers

Q: 8. What are the most important topics from this chapter?

The most important topics from Class 7 Science Chapter 4: The World of Metals and Non-metals include:- Physical and chemical properties of metals and non-metals- Uses of metals and non-metals in daily life- Activity-based differences (e.g., conduction, malleability, etc.)- Key definitions and diagrams from the chapter- Important differences and examples asked in board and school exams

Q: 9. How to learn diagrams/maps for this chapter?

To learn diagrams and maps for Class 7 Science Chapter 4 efficiently:- Practice drawing diagrams from the NCERT textbook and solutions PDF- Label each part correctly, using pencil and ruler for neatness- Memorise common labelling sequences and conventions- Revise important diagrams multiple times before exams- Check marking schemes to understand diagram-related scoring

Q: 10. Do examiners award partial marks for correct steps even if the final answer is wrong?

Yes, CBSE examiners often award partial marks for correct intermediate steps even if the final answer is wrong.- Follow a stepwise format for every answer- Write all calculations, definitions, and reasoning steps clearly- This maximises marks even if you make an error in the last part- Always attempt to show your full method for each question

Stepwise Answers, Key Diagrams & Important Questions for Class 7 Science Chapter 4

Curious about metals, non-metals, and their secrets? Our NCERT Solutions for Class 7 Science Chapter 4: The World of Metals and Non-metals are your go-to companion, crafted to suit the CBSE 2025–26 syllabus for confident school exam preparation.

You’ll find stepwise NCERT answers, exercise-wise solutions, downloadable free PDF, and helpful revisions tips—everything you need to match the CBSE marking scheme and improve your answer writing for this chapter.

Whether it’s definitions, important diagrams, or how to write long and short answers for full marks, our resource bridges every need. Boost your scores with expert-reviewed, exam-ready guidance, all in one convenient place.

Stepwise Answers, Key Diagrams & Important Questions for Class 7 Science Chapter 4

1. Multiple choice questions.

1. Which property allows metals like copper, aluminium, and iron to be beaten into thin sheets without breaking?

(a) Ductility
(b) Malleability
(c) Sonority
(d) Hardness

Answer: (b) Malleability.

2. Answer the following questions in about 30 words.

1. What experiment did Yashwant and Anandi perform to learn about malleability?

Answer: Yashwant and Anandi performed an experiment by beating different items with a hammer. They observed that objects made from copper, aluminum, and iron became flattened without breaking, which demonstrated the property of malleability in these metals.

2. What happens when iron comes into contact with air and water?

Answer: When iron comes into contact with air and water, it undergoes a chemical reaction known as rusting. The iron object develops a brown color due to the formation of rust. This is an example of corrosion of metals.

3. Name some uses of non-metals in daily life.

Answer: Non-metals such as oxygen, carbon, nitrogen, and chlorine are used in daily life for essential purposes like breathing, supporting growth in plants and animals, and water purification.

4. What are some ways to prevent rusting of iron?

Answer: Rusting of iron can be prevented by methods such as painting, oiling, greasing, or applying a layer of zinc metal (galvanization) on the surface of iron articles.

3. Answer the following questions in about 150 words.

1. Describe how Yashwant and Anandi’s exploration helped them understand the difference between metals and non-metals.

Answer: Yashwant and Anandi, guided by their grandfather and local craftsman Sudarshan, conducted experiments and explored the properties of different materials. They learned that metals like iron, copper, and aluminum are malleable, meaning they can be beaten into thin sheets without breaking. These metals are also good conductors of heat and electricity. On the other hand, non-metals do not possess malleability and are generally poor conductors. For example, sulfur is a non-metal that does not react with water like metals do but turns into sulfur dioxide gas when burned. Furthermore, Yashwant and Anandi discovered that metals can corrode, such as iron turning brown due to rusting, while non-metals do not rust. Their hands-on exploration helped them distinguish between the physical and chemical properties of metals and non-metals and understand their applications in daily life.

4. Match the following.

Questions	Answer
1. Rusting	(C) Formation of brown coating on iron
2. Malleability	(A) Beaten into thin sheets
3. Sulfur dioxide	(D) Formed from non-metal burning
4. Galvanization	(B) Zinc coating on iron

Understanding the Properties of Metals and Non-metals

Key terms like malleability, conductivity, and corrosion define how metals and non-metals behave in nature. Exploring real-life examples, as Yashwant and Anandi did in Rajasthan, makes the chapter engaging and boosts your understanding for quick exam revision.

Knowing how metals like iron corrode or how non-metals like sulfur react helps students relate science to daily life. Make notes on everyday uses of metals and non-metals for better recall during exams.

Practice questions about rust prevention and important properties like malleability to strengthen concepts. Consistent revision and real-life connections increase accuracy and confidence for CBSE Class 7 Science exams.

FAQs on Class 7 Science Chapter 4 NCERT Solutions: The World of Metals and Non-metals

1. What is the easiest way to master stepwise answers for Class 7 Science Chapter 4: The World of Metals and Non-metals?

The easiest way to master stepwise answers for Class 7 Science Chapter 4: The World of Metals and Non-metals is to follow NCERT Solutions that provide clear, stepwise explanations.

- Study all exercise-wise and intext solutions
- Practice writing each answer in steps, using key definitions and diagrams where needed
- Refer to exam-ready PDFs for revision
- Use key terms and highlight important points in your answers
- Check marking scheme to align your writing style with CBSE patterns

2. What is the difference between metals and non-metals for class 7?

The main difference between metals and non-metals is based on their physical and chemical properties:

- Metals: Generally shiny, good conductors of heat and electricity, malleable, ductile, and sonorous (e.g., iron, copper, aluminium).
- Non-metals: Usually dull, poor conductors, brittle, non-sonorous (e.g., oxygen, sulphur, carbon).
- Metals form positive ions, while non-metals often form negative ions.
- These properties help in classifying elements for various uses in daily life and industry.

3. How to write stepwise NCERT answers?

To write stepwise NCERT answers and score full marks:

- Read the question carefully and understand what is asked
- Start each answer with a direct statement or definition
- Break down the explanation into numbered or bulleted steps
- Include examples, diagrams, and definitions where needed
- Highlight key terms relevant to the topic
- Keep your handwriting neat and structure your answer logically, as per the CBSE marking scheme

4. Are diagrams required in class 7 science exams?

Diagrams are often required in Class 7 Science exams, especially in chapters involving concepts like the world of metals and non-metals.

- Where the textbook or question asks for a diagram, include it neatly
- Label all parts clearly and according to the NCERT style
- Diagrams can fetch additional marks and help illustrate your answer
- Use a pencil for diagrams and keep labelling on the right side if possible

5. How to present long answers to match CBSE marking?

To present long answers matching CBSE marking:

- Begin with a short introduction defining the topic
- Break the answer into logical paragraphs or steps
- Use headings, numbered points, or bullet lists for clarity
- Add important diagrams or examples if relevant
- Highlight keywords and definitions
- Conclude with a summary or key takeaway point
- Stick to word limits and structure recommended by CBSE

6. Where can I download the chapter’s solutions PDF?

You can download the Class 7 Science Chapter 4: The World of Metals and Non-metals solutions PDF for free from trusted educational websites that provide NCERT Solutions for CBSE students.

- Look for links offering free, chapterwise downloadable PDFs
- Ensure the solutions are updated for the academic year 2025–26
- Download the PDF to use for offline revision and quick exam preparation

7. Are NCERT Solutions enough for Class 7 Science exams?

Yes, NCERT Solutions are generally enough for Class 7 Science exams for CBSE.

- Solutions are based strictly on the latest NCERT textbook syllabus
- They cover stepwise answers, key definitions, and diagrams matching the exam pattern
- For best results, practice solved examples and attempt extra questions from NCERT Exemplar and previous papers

8. What are the most important topics from this chapter?

The most important topics from Class 7 Science Chapter 4: The World of Metals and Non-metals include:

- Physical and chemical properties of metals and non-metals
- Uses of metals and non-metals in daily life
- Activity-based differences (e.g., conduction, malleability, etc.)
- Key definitions and diagrams from the chapter
- Important differences and examples asked in board and school exams

9. How to learn diagrams/maps for this chapter?

To learn diagrams and maps for Class 7 Science Chapter 4 efficiently:

- Practice drawing diagrams from the NCERT textbook and solutions PDF
- Label each part correctly, using pencil and ruler for neatness
- Memorise common labelling sequences and conventions
- Revise important diagrams multiple times before exams
- Check marking schemes to understand diagram-related scoring

10. Do examiners award partial marks for correct steps even if the final answer is wrong?

Yes, CBSE examiners often award partial marks for correct intermediate steps even if the final answer is wrong.

- Follow a stepwise format for every answer
- Write all calculations, definitions, and reasoning steps clearly
- This maximises marks even if you make an error in the last part
- Always attempt to show your full method for each question

11. Can I access NCERT Exemplar questions and solutions for Class 7 Science Chapter 4?

Yes, NCERT Exemplar questions and solutions for Class 7 Science Chapter 4 are available online.

- These provide higher-order and application-based questions
- Exemplar solutions help you understand tough concepts and score better in school and competitive exams
- Practice these alongside your NCERT textbook and other school materials

12. Which questions are likely from this chapter in school exams?

Questions likely from Class 7 Science Chapter 4 in school exams include:

- Short notes on the properties of metals and non-metals
- Differences between metals and non-metals with examples
- Labelling diagrams about activities showing properties
- Uses of specific metals and non-metals in daily life
- Important definitions and fill-in-the-blanks from the chapter