Class 6 Science Curiosity Solutions English Medium

NCERT Solutions Class 6 Science Curiosity English Medium

Chapter 6. Materials Around Us

Topic: Assignments - What Have You Learned?

Chapter 6. Materials Around Us

This assignment is based on the concepts covered in the chapter Materials Around Us. It includes objective, subjective, competency-based, case study, and Higher Order Thinking Skills (HOTS) questions prepared according to the latest CBSE pattern. Students should attempt all questions independently to strengthen their understanding and improve analytical skills.

Assignments - What Have You Learned?

Attempt all the following questions without referring to the textbook. These questions will help you revise the complete chapter and prepare effectively for examinations.

Test Your Learning

Fill in the Blanks

1. Every object around us is made of one or more __________.
2. The process of grouping materials based on their properties is called __________.
3. Materials having a shiny surface are called __________ materials.
4. Glass is a __________ material.
5. Wood is an __________ material.
6. Sugar is __________ in water.
7. Sand is __________ in water.
8. The SI unit of mass is __________.
9. The space occupied by a material is called __________.
10. Anything that has mass and occupies space is called __________.

True or False

1. All objects are made from only one material.
2. Metals are generally lustrous.
3. Butter paper is a transparent material.
4. Wood is an opaque material.
5. Salt dissolves completely in water.
6. Sponge is a hard material.
7. Every material has mass.
8. Volume is the amount of matter present in an object.
9. Classification helps us study materials more easily.
10. Air is a form of matter.

Match the Following

One Word Answer

1. A substance used to make an object.
2. The shiny appearance of a material.
3. A material through which light passes completely.
4. A substance that dissolves in water.
5. The amount of matter present in an object.
6. The space occupied by an object.
7. The SI unit of mass.
8. Anything having mass and occupying space.
9. A hard, lustrous metal commonly used in utensils.
10. The process of grouping similar materials.

Very Short Answer Questions

1. What is a material?
2. What is matter?
3. Define lustre.
4. What are hard materials?
5. What are soft materials?
6. Define transparent material.
7. What is a soluble substance?
8. What is mass?
9. What is volume?
10. Why do we classify materials?

Short Answer Questions

1. Differentiate between lustrous and non-lustrous materials with examples.
2. Differentiate between hard and soft materials.
3. Differentiate between transparent, translucent, and opaque materials.
4. Explain soluble and insoluble substances with suitable examples.
5. Why is classification of materials important?
6. Explain the concept of matter.
7. Differentiate between mass and volume.
8. Why are different materials used for making different objects?
9. Explain any four properties of materials.
10. Write any four applications of different material properties in daily life.

Long Answer Questions

1. Explain the different properties of materials with suitable examples.
2. Describe the classification of materials and explain why it is important.
3. Explain the concepts of matter, mass, and volume in detail.
4. Discuss the practical applications of material properties in daily life.
5. Explain how the properties of materials help scientists, engineers, and manufacturers select suitable materials for different purposes.

Case Study Based Questions

Case Study: During a science activity, Riya collected different objects such as a glass tumbler, a wooden block, a sponge, a steel spoon, sugar, and sand. She observed that some materials were shiny, some allowed light to pass through, some dissolved in water, while others did not.

1. Which object among these is transparent?
2. Which material is lustrous?
3. Which substance dissolves completely in water?
4. Which material is soft?
5. Why is it useful to classify these materials according to their properties?

Competency Based Questions

1. Observe ten objects available in your classroom and classify them as hard or soft.
2. Collect five household materials and classify them as transparent, translucent, or opaque.
3. Perform a simple activity to identify soluble and insoluble substances using water and record your observations.
4. Prepare a table showing different objects used at home and the materials from which they are made.
5. Identify five objects made from more than one material and explain why different materials are used.

HOTS Questions (Higher Order Thinking Skills)

1. Why is glass used for windows while wood is not? Explain using the properties of materials.
2. Imagine that all materials around you were transparent. What problems would people face in everyday life?
3. Why is it important for engineers to study the properties of materials before constructing buildings or machines?
4. A raincoat and a cotton shirt are used in different weather conditions. Explain why they are made of different materials.
5. Suppose scientists discover a new material that is transparent, very hard, lightweight, and waterproof. Suggest five possible applications of this material in daily life.

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