The following 20 Multiple Choice Questions (MCQ) are based on
Chapter 6: Materials Around Us from the NCERT Class 6
Science textbook Curiosity. Each question has four options - select the
best answer and click to check.
Instructions: Read each question carefully. Choose the most
appropriate option from (a), (b), (c), or (d). Click
Show Answer to reveal the correct answer with explanation.
Multiple Choice Questions
1An object may be made from:
(a) One or more materials
(b) Only metal
(c) Only wood
(d) No matter
(a) is correct
Objects are designed from materials chosen for useful properties.
2Why do we group materials?
(a) To make them identical
(b) To remove their uses
(c) To avoid observation
(d) To organise them by common properties
(d) is correct
Grouping helps compare, select and study materials.
3Lustre means:
(a) Solubility
(b) Transparency
(c) Shininess
(d) Softness
(c) is correct
A lustrous surface reflects light and appears shiny.
4Which material is usually lustrous?
(a) Cotton
(b) Aluminium foil
(c) Eraser
(d) Unpolished wood
(b) is correct
Metal surfaces commonly show lustre.
5A hard material:
(a) Does not compress or scratch easily
(b) Always dissolves in water
(c) Must be transparent
(d) Has no mass
(a) is correct
Hardness describes resistance to pressing, scratching or deformation.
6Which is soft?
(a) Iron nail
(b) Stone
(c) Glass sheet
(d) Cotton
(d) is correct
Cotton can be compressed and deformed easily.
7A transparent material allows:
(a) Only a blurred view
(b) Only sound through
(c) A clear view through it
(d) No light through
(c) is correct
Clear glass and air transmit most visible light.
8A translucent material allows:
(a) Only heat
(b) Some light but not a clear view
(c) No light
(d) A perfectly clear view
(b) is correct
Tracing paper scatters transmitted light.
9An opaque material:
(a) Blocks light from passing through
(b) Is always colourless
(c) Allows a clear view
(d) Has no volume
(a) is correct
Wood and metals are common opaque materials.
10Air is considered transparent because:
(a) It has no matter
(b) It blocks all light
(c) It is a solid
(d) We can see objects through it
(d) is correct
Air transmits visible light even though it has mass and occupies space.
11A soluble substance:
(a) Has no mass
(b) Must be a gas
(c) Dissolves in a given liquid
(d) Always floats
(c) is correct
Solubility describes whether one material forms a uniform mixture in another.
12Which dissolves in water?
(a) Sand
(b) Sugar
(c) Sawdust
(d) Mustard oil
(b) is correct
Sugar forms a solution with water.
13Which is insoluble in water?
(a) Sawdust
(b) Glucose
(c) Common salt
(d) Sugar
(a) is correct
Sawdust remains separate rather than dissolving.
14Mustard oil and water:
(a) Always form a clear solution
(b) Are the same substance
(c) Have no volume
(d) Do not mix uniformly
(d) is correct
The liquids form separate layers because they are immiscible.
15Matter is anything that:
(a) Has no volume
(b) Is always solid
(c) Has mass and occupies space
(d) Is visible only
(c) is correct
Solids, liquids and gases all count as matter.
16Why is air matter?
(a) It is invisible
(b) It has mass and occupies space
(c) It has no particles
(d) It cannot fill a balloon
(b) is correct
Inflating a balloon shows air takes space and adds mass.
17Volume is the amount of:
(a) Space occupied by an object
(b) Shine on a surface
(c) Mass per length
(d) Light passing through
(a) is correct
Every material object occupies three-dimensional space.
18Two equal-sized objects can have different masses because they may be made of:
(a) The same space
(b) No matter
(c) Only air
(d) Different materials
(d) is correct
Materials pack different amounts of matter into the same volume.
19A good material for a lightweight chair should be:
(a) Easily crushed
(b) Always transparent
(c) Strong but not very heavy
(d) Soluble in water
(c) is correct
Material choice depends on matching properties to the intended use.
20Recycling materials helps to:
(a) Make matter disappear
(b) Reduce waste and conserve resources
(c) Increase unnecessary extraction
(d) Destroy every useful property
(b) is correct
Recovered materials can be processed into new products, saving raw materials and energy.
