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Question (21)

QN0014532

While doing the activity, Meera looked at a candle flame through paper. The flame could not be seen. The paper behaved like a(n) ________.

(A) transparent material
(B) opaque material
(C) gas
(D) liquid

Correct Answer: B

Explanation:

The paper blocked the light.

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Question (22)

QN0014533

Which material would be best for making a classroom window if students need to see outside clearly?

(A) Brick
(B) Wood
(C) Glass
(D) Metal

Correct Answer: C

Explanation:

Glass allows clear visibility.

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Question (23)

QN0014534

Why did Khushi not notice the windowpane at first?

(A) It was painted.
(B) It was transparent.
(C) It was broken.
(D) It was hidden.

Correct Answer: B

Explanation:

Transparent objects are often not noticed immediately.

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Question (24)

QN0014535

If a material blocks all light from passing through it, it is ________.

(A) transparent
(B) translucent
(C) opaque
(D) flexible

Correct Answer: C

Explanation:

Opaque materials do not allow light through.

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Question (25)

QN0014536

A student wants maximum visibility of an object placed behind a sheet. Which sheet should be chosen?

(A) Transparent sheet
(B) Translucent sheet
(C) Opaque sheet
(D) Wooden sheet

Correct Answer: A

Explanation:

Transparent sheets provide clear visibility.

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Question (26)

QN0014537

A white paper is viewed through thin blue transparent plastic. The paper is most likely to appear ________.

(A) blue-tinted
(B) green
(C) black
(D) colourless

Correct Answer: A

Explanation:

Coloured transparent plastic changes the appearance of colours.

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Question (27)

QN0014538

A blue toy is viewed through thin yellow transparent plastic. What is most likely to happen?

(A) The toy may appear different in colour.
(B) The toy disappears completely.
(C) The toy becomes larger.
(D) The toy becomes heavier.

Correct Answer: A

Explanation:

Coloured transparent materials can alter the perceived colour.

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Question (28)

QN0014539

Which activity helps compare transparent, translucent and opaque materials?

(A) Smelling objects
(B) Tasting objects
(C) Looking at a bulb or candle flame through objects
(D) Weighing objects

Correct Answer: C

Explanation:

The activity compares how clearly objects can be seen through materials.

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Question (29)

QN0014540

A student can read a book through a sheet without difficulty. The sheet is most likely ________.

(A) transparent
(B) opaque
(C) translucent
(D) rough

Correct Answer: A

Explanation:

Transparent materials allow clear reading through them.

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Question (30)

QN0014541

Which statement is correct?

(A) Wood is transparent.
(B) Glass is opaque.
(C) Glass is transparent.
(D) Wood is translucent.

Correct Answer: C

Explanation:

Glass is a transparent material.

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Question (21)

While doing the activity, Meera looked at a candle flame through paper. The flame could not be seen. The paper behaved like a(n) ________.

Explanation:

Link:

Question (22)

Which material would be best for making a classroom window if students need to see outside clearly?

Explanation:

Link:

Question (23)

Why did Khushi not notice the windowpane at first?

Explanation:

Link:

Question (24)

If a material blocks all light from passing through it, it is ________.

Explanation:

Link:

Question (25)

A student wants maximum visibility of an object placed behind a sheet. Which sheet should be chosen?

Explanation:

Link:

Question (26)

A white paper is viewed through thin blue transparent plastic. The paper is most likely to appear ________.

Explanation:

Link:

Question (27)

A blue toy is viewed through thin yellow transparent plastic. What is most likely to happen?

Explanation:

Link:

Question (28)

Which activity helps compare transparent, translucent and opaque materials?

Explanation:

Link:

Question (29)

A student can read a book through a sheet without difficulty. The sheet is most likely ________.

Explanation:

Link:

Question (30)

Which statement is correct?

Explanation:

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