Standard Science Primary 4 Energy

Which of the following objects will cast the darkest and clearest shadow when placed in front of a torch?

A A sheet of clear plastic
B A glass of water
C A wooden block
D A piece of tracing paper
Show Worked Solution

Worked Solution

Step 1: Shadows are formed when light is blocked. Step 2: Opaque objects block all light. Step 3: Wood is opaque, so it casts the darkest, clearest shadow.

Correct answer: A wooden block

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