Primary 4 Science — Energy Practice | Standard

Standard Science Primary 4 Energy

Siti placed an object between a torch and a screen. She saw a dark, sharp shadow on the screen. Which material is the object most likely made of?

A Glass

B Clear plastic

C Cardboard

D Tracing paper

Show Worked Solution

Step 1: A dark, sharp shadow is formed when light is blocked completely. Step 2: This requires an opaque material. Step 3: Cardboard is opaque.

Correct answer: Cardboard

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