Understanding NCERT Class 6 Science Chapter 6, Materials Around Us, becomes easier when you practice extra questions that sharpen your memory and critical thinking. This post by BodhiClasses, your friendly digital tutor, provides a rich set of Multiple Choice Questions (MCQs), True/False statements, 1-mark, 2-mark, and Higher Order Thinking Skills (HOTS) questions with answers.
Multiple Choice Questions (MCQs)
- Which of the following materials is lustrous?
a) Paper
b) Rubber
c) Gold
d) Chalk
✔️ Answer: c) Gold - Which material is transparent?
a) Wood
b) Frosted glass
c) Glass sheet
d) Cardboard
✔️ Answer: c) Glass sheet - Which material can dissolve in water?
a) Sand
b) Salt
c) Sawdust
d) Oil
✔️ Answer: b) Salt - Which of the following is a soft material?
a) Iron
b) Wood
c) Sponge
d) Stone
✔️ Answer: c) Sponge - The method of grouping materials based on similar properties is called:
a) Identification
b) Classification
c) Observation
d) Sorting
✔️ Answer: b) Classification - Which of these is not a property of matter?
a) Shape
b) Mass
c) Volume
d) Transparency
✔️ Answer: a) Shape - What is the term for materials through which we cannot see?
a) Transparent
b) Translucent
c) Reflective
d) Opaque
✔️ Answer: d) Opaque - Which of these materials will most likely float in water?
a) Iron nail
b) Stone
c) Wood
d) Glass marble
✔️ Answer: c) Wood - A liquid that does not mix with water is:
a) Salt solution
b) Vinegar
c) Honey
d) Mustard oil
✔️ Answer: d) Mustard oil - Which of these is a transparent gas and also a matter?
a) Smoke
b) Oxygen
c) Fog
d) Steam
✔️ Answer: b) Oxygen
True or False Questions
- T/F: Water is opaque.
❌ False – Water is transparent. - T/F: Chalk is a lustrous material.
❌ False – Chalk is non-lustrous. - T/F: All metals are hard.
✅ True - T/F: Sugar is soluble in water.
✅ True - T/F: Sand dissolves in water.
❌ False – Sand is insoluble. - T/F: Glass allows light to pass through.
✅ True - T/F: Sponge is hard.
❌ False – Sponge is soft. - T/F: Matter does not occupy space.
❌ False – Matter occupies space. - T/F: Wood is a transparent material.
❌ False – Wood is opaque. - T/F: Air is a form of matter.
✅ True
One Mark Questions
- Define matter.
Answer: Anything that has mass and occupies space. - Give an example of a transparent material.
Answer: Clear glass. - Name a material that is soluble in water.
Answer: Salt. - What is an opaque object?
Answer: An object that does not let light pass through. - Is paper lustrous?
Answer: No, it is non-lustrous. - Name a hard material.
Answer: Iron. - Which gas is soluble in water and important for aquatic life?
Answer: Oxygen. - What is the unit of mass?
Answer: Kilogram (kg) or gram (g). - Name a non-metal used in pencils.
Answer: Graphite. - What do you call materials that partially allow light to pass through?
Answer: Translucent materials. - Give an example of a soft material.
Answer: Cotton. - Name a liquid that doesn’t mix with water.
Answer: Mustard oil. - Can solids be transparent?
Answer: Yes, like clear plastic. - What property allows metal to shine?
Answer: Lustre. - Is air visible?
Answer: No, but it is matter. - Name one object made of clay.
Answer: Pot. - What is used to measure volume?
Answer: Litre (L) or millilitre (mL). - Is gold a good conductor of electricity?
Answer: Yes. - Name a translucent kitchen item.
Answer: Butter paper. - What property makes glass useful for windows?
Answer: Transparency.
Two Mark Questions
- Differentiate between transparent and opaque materials.
Answer: Transparent materials allow full light to pass (e.g., glass), while opaque materials block light (e.g., wood). - Why are materials classified?
Answer: To study them easily, understand their properties, and use them appropriately. - Mention two soluble and two insoluble substances.
Answer: Soluble – Salt, sugar; Insoluble – Sand, chalk powder. - Write two examples each of lustrous and non-lustrous materials.
Answer: Lustrous – Gold, silver; Non-lustrous – Wood, rubber. - Why is glass used to make lenses and windows?
Answer: Because it is transparent and allows light to pass through. - What is mass? How is it measured?
Answer: Mass is the quantity of matter; measured in grams or kilograms. - Name two materials that float on water and two that sink.
Answer: Float – Wood, plastic; Sink – Iron, stone. - What is solubility?
Answer: The ability of a substance to dissolve in a liquid, especially water. - State the difference between soft and hard materials.
Answer: Soft materials are easily compressed (e.g., sponge); hard ones are not (e.g., stone). - Define volume and state its unit.
Answer: Volume is the space occupied by matter; units are litre (L) or millilitre (mL).
Higher Order Thinking Skills (HOTS)
- Why can’t we use cloth to make water bottles?
Answer: Cloth is soft, porous, and not waterproof — hence not suitable for storing liquids. - A student says sugar is not visible in water, so it disappears. Is he right?
Answer: No. Sugar dissolves in water but still exists as a solute; it doesn’t vanish. - How does transparency help in packaging food items?
Answer: It allows consumers to see the product before purchase, ensuring quality and trust. - If you mix oil and water, will they form a single layer? Why or why not?
Answer: No, because oil is insoluble in water and is lighter, so it forms a separate layer. - Can we say air is matter though we can’t see it? Justify.
Answer: Yes. Air occupies space and has mass, which can be proven using balloons or syringes.
