Standard Science Primary 3 Diversity

Luke used a coin to scratch a plastic ruler and a wooden block. The ruler showed a scratch, but the wooden block did not. This shows that __________.

A the coin is harder than plastic
B wood is flexible
C plastic is harder than wood
D wood is harder than the coin
Show Worked Solution

Worked Solution

Step 1: A harder material can scratch a softer material. Step 2: Since the coin scratched the plastic, the coin is harder than plastic. Step 3: Match this logic with Option B.

Correct answer: the coin is harder than plastic

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