Standard Science Primary 4 Energy

Siti placed four different materials in a dark room and shone a torch on them. Which material will cast the darkest shadow?

A Tracing paper
B Clear glass
C Clear plastic
D Cardboard
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Worked Solution

Step 1: Shadows are formed when light is blocked by an object. Step 2: Opaque materials block all light, casting the darkest shadows. Step 3: Cardboard is opaque.

Correct answer: Cardboard

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