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Question (11)

QN0031338

Four objects are shown below. P – Glass window Q – Frosted glass R – Wooden board S – Clear water Which arrangement correctly classifies them as Transparent, Translucent and Opaque?

(A) Transparent: P, Q; Opaque: R; Translucent: S
(B) Transparent: P, S; Translucent: Q; Opaque: R
(C) Transparent: Q, S; Opaque: P; Translucent: R
(D) Transparent: P; Translucent: R; Opaque: Q, S

Correct Answer: B

Explanation:

Clear glass and water are transparent, frosted glass is translucent and wood is opaque.

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Question (12)

QN0031339

A student polishes a piece of iron until it shines brightly. What can be concluded?

(A) Polishing changes iron into gold
(B) Lustre becomes visible on the surface
(C) Iron becomes transparent
(D) Iron becomes soft

Correct Answer: B

Explanation:

Polishing reveals the lustrous surface of the metal.

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Question (13)

QN0031340

Which of the following correctly represents matter?

(A) Anything that has colour only
(B) Anything that occupies space only
(C) Anything that has mass and occupies space
(D) Anything that shines

Correct Answer: C

Explanation:

Matter is anything that has mass and occupies space.

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Question (14)

QN0031341

A student fills two identical bottles. Bottle A contains 500 mL of water. Bottle B contains 250 mL of water. Which statement is correct?

(A) Bottle A contains less volume
(B) Both contain equal volume
(C) Bottle A contains greater volume
(D) Volume cannot be compared

Correct Answer: C

Explanation:

Since 500 mL is greater than 250 mL, Bottle A has a greater volume.

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Question (15)

QN0031342

Which option contains only materials that are generally non-lustrous?

(A) Copper, aluminium
(B) Iron, zinc
(C) Wood, rubber
(D) Gold, silver

Correct Answer: C

Explanation:

Wood and rubber do not have a shiny (lustrous) surface.

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Question (16)

QN0031343

A student classifies objects as follows. Steel spoon → Hard Chalk → Soft Sponge → Soft Stone → Hard How many objects are correctly classified?

(A) 1
(B) 2
(C) 3
(D) 4

Correct Answer: D

Explanation:

Steel spoon and stone are hard, while chalk and sponge are comparatively soft.

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Question (17)

QN0031344

A shopkeeper stores rice, wheat and pulses in separate containers. The main purpose of doing this is to

(A) increase their weight
(B) improve their colour
(C) make identification and handling easier
(D) make them transparent

Correct Answer: C

Explanation:

Classification helps in easy storage, identification and handling.

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Question (18)

QN0031345

Which statement is NOT correct?

(A) One object may be made of more than one material.
(B) Different objects can be made from the same material.
(C) Every object is made from only one material.
(D) Materials are chosen according to their properties.

Correct Answer: C

Explanation:

Many objects such as pens and bicycles are made from more than one material.

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Question (19)

QN0031346

A student wants to make a window that allows sunlight to enter but prevents people from seeing clearly inside. Which material is the best choice?

(A) Wooden sheet
(B) Window glass
(C) Frosted glass
(D) Cardboard

Correct Answer: C

Explanation:

Frosted glass is translucent. It allows light to pass but does not allow clear vision.

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Question (20)

QN0031347

A student makes the following statements. I. Sugar dissolves in water. II. Air is matter. III. All shiny objects are metals. IV. Every material has mass and occupies space. Which combination is correct?

(A) I and III only
(B) I, II and IV only
(C) II and III only
(D) I, III and IV only

Correct Answer: B

Explanation:

Sugar is soluble in water, air is matter, and every material has mass and occupies space. All shiny objects are not necessarily metals.

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Question (11)

Four objects are shown below. P – Glass window Q – Frosted glass R – Wooden board S – Clear water Which arrangement correctly classifies them as Transparent, Translucent and Opaque?

Explanation:

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Question (12)

A student polishes a piece of iron until it shines brightly. What can be concluded?

Explanation:

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Question (13)

Which of the following correctly represents matter?

Explanation:

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Question (14)

A student fills two identical bottles. Bottle A contains 500 mL of water. Bottle B contains 250 mL of water. Which statement is correct?

Explanation:

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Question (15)

Which option contains only materials that are generally non-lustrous?

Explanation:

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Question (16)

A student classifies objects as follows. Steel spoon → Hard Chalk → Soft Sponge → Soft Stone → Hard How many objects are correctly classified?

Explanation:

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Question (17)

A shopkeeper stores rice, wheat and pulses in separate containers. The main purpose of doing this is to

Explanation:

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Question (18)

Which statement is NOT correct?

Explanation:

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Question (19)

A student wants to make a window that allows sunlight to enter but prevents people from seeing clearly inside. Which material is the best choice?

Explanation:

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Question (20)

A student makes the following statements. I. Sugar dissolves in water. II. Air is matter. III. All shiny objects are metals. IV. Every material has mass and occupies space. Which combination is correct?

Explanation:

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