Standard Science Primary 4 Energy

Jun Jie tried to look at a candle flame through a bent tube but could not see it. When he used a straight tube, he could see the flame clearly. What property of light does this show?

A Light travels in straight lines.
B Light can be reflected.
C Light can pass through all materials.
D Light is a form of energy.
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Worked Solution

Step 1: The bent tube blocks the line of sight. Step 2: Light cannot bend around the corners of the tube to reach the eye. Step 3: This confirms that light travels in straight lines.

Correct answer: Light travels in straight lines.

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